Roll reference builds to 35.0.1916.114.

chrome_linux/resources/inspector/HeapSnapshotWorker.js

-WebInspector={};WebInspector.AllocationProfile=function(profile)
-{this._strings=profile.strings;this._nextNodeId=1;this._idToFunctionInfo={};this._idToNode={};this._collapsedTopNodeIdToFunctionInfo={};this._traceTops=null;this._buildAllocationFunctionInfos(profile);this._traceTree=this._buildInvertedAllocationTree(profile);}
-WebInspector.AllocationProfile.prototype={_buildAllocationFunctionInfos:function(profile)
-{var strings=this._strings;var functionInfoFields=profile.snapshot.meta.trace_function_info_fields;var functionIdOffset=functionInfoFields.indexOf("function_id");var functionNameOffset=functionInfoFields.indexOf("name");var scriptNameOffset=functionInfoFields.indexOf("script_name");var scriptIdOffset=functionInfoFields.indexOf("script_id");var lineOffset=functionInfoFields.indexOf("line");var columnOffset=functionInfoFields.indexOf("column");var functionInfoFieldCount=functionInfoFields.length;var map=this._idToFunctionInfo;map[0]=new WebInspector.FunctionAllocationInfo("(root)","<unknown>",0,-1,-1);var rawInfos=profile.trace_function_infos;var infoLength=rawInfos.length;for(var i=0;i<infoLength;i+=functionInfoFieldCount){map[rawInfos[i+functionIdOffset]]=new WebInspector.FunctionAllocationInfo(strings[rawInfos[i+functionNameOffset]],strings[rawInfos[i+scriptNameOffset]],rawInfos[i+scriptIdOffset],rawInfos[i+lineOffset],rawInfos[i+columnOffset]);}},_buildInvertedAllocationTree:function(profile)
-{var traceTreeRaw=profile.trace_tree;var idToFunctionInfo=this._idToFunctionInfo;var traceNodeFields=profile.snapshot.meta.trace_node_fields;var nodeIdOffset=traceNodeFields.indexOf("id");var functionIdOffset=traceNodeFields.indexOf("function_id");var allocationCountOffset=traceNodeFields.indexOf("count");var allocationSizeOffset=traceNodeFields.indexOf("size");var childrenOffset=traceNodeFields.indexOf("children");var nodeFieldCount=traceNodeFields.length;function traverseNode(rawNodeArray,nodeOffset,parent)
-{var functionInfo=idToFunctionInfo[rawNodeArray[nodeOffset+functionIdOffset]];var result=new WebInspector.AllocationTraceNode(rawNodeArray[nodeOffset+nodeIdOffset],functionInfo,rawNodeArray[nodeOffset+allocationCountOffset],rawNodeArray[nodeOffset+allocationSizeOffset],parent);functionInfo.addTraceTopNode(result);var rawChildren=rawNodeArray[nodeOffset+childrenOffset];for(var i=0;i<rawChildren.length;i+=nodeFieldCount){result.children.push(traverseNode(rawChildren,i,result));}
+WebInspector={};WebInspector.AllocationProfile=function(profile,liveObjectStats)
+{this._strings=profile.strings;this._liveObjectStats=liveObjectStats;this._nextNodeId=1;this._functionInfos=[]
+this._idToNode={};this._collapsedTopNodeIdToFunctionInfo={};this._traceTops=null;this._buildFunctionAllocationInfos(profile);this._traceTree=this._buildAllocationTree(profile,liveObjectStats);}
+WebInspector.AllocationProfile.prototype={_buildFunctionAllocationInfos:function(profile)
+{var strings=this._strings;var functionInfoFields=profile.snapshot.meta.trace_function_info_fields;var functionIdOffset=functionInfoFields.indexOf("function_id");var functionNameOffset=functionInfoFields.indexOf("name");var scriptNameOffset=functionInfoFields.indexOf("script_name");var scriptIdOffset=functionInfoFields.indexOf("script_id");var lineOffset=functionInfoFields.indexOf("line");var columnOffset=functionInfoFields.indexOf("column");var functionInfoFieldCount=functionInfoFields.length;var rawInfos=profile.trace_function_infos;var infoLength=rawInfos.length;var functionInfos=this._functionInfos=new Array(infoLength/functionInfoFieldCount);var index=0;for(var i=0;i<infoLength;i+=functionInfoFieldCount){functionInfos[index++]=new WebInspector.FunctionAllocationInfo(strings[rawInfos[i+functionNameOffset]],strings[rawInfos[i+scriptNameOffset]],rawInfos[i+scriptIdOffset],rawInfos[i+lineOffset],rawInfos[i+columnOffset]);}},_buildAllocationTree:function(profile,liveObjectStats)
+{var traceTreeRaw=profile.trace_tree;var functionInfos=this._functionInfos;var traceNodeFields=profile.snapshot.meta.trace_node_fields;var nodeIdOffset=traceNodeFields.indexOf("id");var functionInfoIndexOffset=traceNodeFields.indexOf("function_info_index");var allocationCountOffset=traceNodeFields.indexOf("count");var allocationSizeOffset=traceNodeFields.indexOf("size");var childrenOffset=traceNodeFields.indexOf("children");var nodeFieldCount=traceNodeFields.length;function traverseNode(rawNodeArray,nodeOffset,parent)
+{var functionInfo=functionInfos[rawNodeArray[nodeOffset+functionInfoIndexOffset]];var id=rawNodeArray[nodeOffset+nodeIdOffset];var stats=liveObjectStats[id];var liveCount=stats?stats.count:0;var liveSize=stats?stats.size:0;var result=new WebInspector.TopDownAllocationNode(id,functionInfo,rawNodeArray[nodeOffset+allocationCountOffset],rawNodeArray[nodeOffset+allocationSizeOffset],liveCount,liveSize,parent);functionInfo.addTraceTopNode(result);var rawChildren=rawNodeArray[nodeOffset+childrenOffset];for(var i=0;i<rawChildren.length;i+=nodeFieldCount){result.children.push(traverseNode(rawChildren,i,result));}
 return result;}
 return traverseNode(traceTreeRaw,0,null);},serializeTraceTops:function()
 {if(this._traceTops)
-return this._traceTops;var result=this._traceTops=[];var idToFunctionInfo=this._idToFunctionInfo;for(var id in idToFunctionInfo){var info=idToFunctionInfo[id];if(info.totalCount===0)
-continue;var nodeId=this._nextNodeId++;result.push(this._serializeNode(nodeId,info,info.totalCount,info.totalSize,true));this._collapsedTopNodeIdToFunctionInfo[nodeId]=info;}
+return this._traceTops;var result=this._traceTops=[];var functionInfos=this._functionInfos;for(var i=0;i<functionInfos.length;i++){var info=functionInfos[i];if(info.totalCount===0)
+continue;var nodeId=this._nextNodeId++;result.push(this._serializeNode(nodeId,info,info.totalCount,info.totalSize,info.totalLiveCount,info.totalLiveSize,true));this._collapsedTopNodeIdToFunctionInfo[nodeId]=info;}
 result.sort(function(a,b){return b.size-a.size;});return result;},serializeCallers:function(nodeId)
-{var node=this._idToNode[nodeId];if(!node){var functionInfo=this._collapsedTopNodeIdToFunctionInfo[nodeId];node=functionInfo.tracesWithThisTop();delete this._collapsedTopNodeIdToFunctionInfo[nodeId];this._idToNode[nodeId]=node;}
-var nodesWithSingleCaller=[];while(node.callers().length===1){node=node.callers()[0];nodesWithSingleCaller.push(this._serializeCaller(node));}
+{var node=this._ensureBottomUpNode(nodeId);var nodesWithSingleCaller=[];while(node.callers().length===1){node=node.callers()[0];nodesWithSingleCaller.push(this._serializeCaller(node));}
 var branchingCallers=[];var callers=node.callers();for(var i=0;i<callers.length;i++){branchingCallers.push(this._serializeCaller(callers[i]));}
-return{nodesWithSingleCaller:nodesWithSingleCaller,branchingCallers:branchingCallers};},_serializeCaller:function(node)
-{var callerId=this._nextNodeId++;this._idToNode[callerId]=node;return this._serializeNode(callerId,node.functionInfo,node.allocationCount,node.allocationSize,node.hasCallers());},_serializeNode:function(nodeId,functionInfo,count,size,hasChildren)
-{return{id:nodeId,name:functionInfo.functionName,scriptName:functionInfo.scriptName,line:functionInfo.line,column:functionInfo.column,count:count,size:size,hasChildren:hasChildren};}}
-WebInspector.AllocationTraceNode=function(id,functionInfo,count,size,parent)
-{this.id=id;this.functionInfo=functionInfo;this.allocationCount=count;this.allocationSize=size;this.parent=parent;this.children=[];}
-WebInspector.AllocationBackTraceNode=function(functionInfo)
-{this.functionInfo=functionInfo;this.allocationCount=0;this.allocationSize=0;this._callers=[];}
-WebInspector.AllocationBackTraceNode.prototype={addCaller:function(traceNode)
+return new WebInspector.HeapSnapshotCommon.AllocationNodeCallers(nodesWithSingleCaller,branchingCallers);},traceIds:function(allocationNodeId)
+{return this._ensureBottomUpNode(allocationNodeId).traceTopIds;},_ensureBottomUpNode:function(nodeId)
+{var node=this._idToNode[nodeId];if(!node){var functionInfo=this._collapsedTopNodeIdToFunctionInfo[nodeId];node=functionInfo.bottomUpRoot();delete this._collapsedTopNodeIdToFunctionInfo[nodeId];this._idToNode[nodeId]=node;}
+return node;},_serializeCaller:function(node)
+{var callerId=this._nextNodeId++;this._idToNode[callerId]=node;return this._serializeNode(callerId,node.functionInfo,node.allocationCount,node.allocationSize,node.liveCount,node.liveSize,node.hasCallers());},_serializeNode:function(nodeId,functionInfo,count,size,liveCount,liveSize,hasChildren)
+{return new WebInspector.HeapSnapshotCommon.SerializedAllocationNode(nodeId,functionInfo.functionName,functionInfo.scriptName,functionInfo.line,functionInfo.column,count,size,liveCount,liveSize,hasChildren);}}
+WebInspector.TopDownAllocationNode=function(id,functionInfo,count,size,liveCount,liveSize,parent)
+{this.id=id;this.functionInfo=functionInfo;this.allocationCount=count;this.allocationSize=size;this.liveCount=liveCount;this.liveSize=liveSize;this.parent=parent;this.children=[];}
+WebInspector.BottomUpAllocationNode=function(functionInfo)
+{this.functionInfo=functionInfo;this.allocationCount=0;this.allocationSize=0;this.liveCount=0;this.liveSize=0;this.traceTopIds=[];this._callers=[];}
+WebInspector.BottomUpAllocationNode.prototype={addCaller:function(traceNode)
 {var functionInfo=traceNode.functionInfo;var result;for(var i=0;i<this._callers.length;i++){var caller=this._callers[i];if(caller.functionInfo===functionInfo){result=caller;break;}}
-if(!result){result=new WebInspector.AllocationBackTraceNode(functionInfo);this._callers.push(result);}
+if(!result){result=new WebInspector.BottomUpAllocationNode(functionInfo);this._callers.push(result);}
 return result;},callers:function()
 {return this._callers;},hasCallers:function()
 {return this._callers.length>0;}}
 WebInspector.FunctionAllocationInfo=function(functionName,scriptName,scriptId,line,column)
-{this.functionName=functionName;this.scriptName=scriptName;this.scriptId=scriptId;this.line=line;this.column=column;this.totalCount=0;this.totalSize=0;this._traceTops=[];}
+{this.functionName=functionName;this.scriptName=scriptName;this.scriptId=scriptId;this.line=line;this.column=column;this.totalCount=0;this.totalSize=0;this.totalLiveCount=0;this.totalLiveSize=0;this._traceTops=[];}
 WebInspector.FunctionAllocationInfo.prototype={addTraceTopNode:function(node)
 {if(node.allocationCount===0)
-return;this._traceTops.push(node);this.totalCount+=node.allocationCount;this.totalSize+=node.allocationSize;},tracesWithThisTop:function()
+return;this._traceTops.push(node);this.totalCount+=node.allocationCount;this.totalSize+=node.allocationSize;this.totalLiveCount+=node.liveCount;this.totalLiveSize+=node.liveSize;},bottomUpRoot:function()
 {if(!this._traceTops.length)
-return null;if(!this._backTraceTree)
-this._buildAllocationTraceTree();return this._backTraceTree;},_buildAllocationTraceTree:function()
-{this._backTraceTree=new WebInspector.AllocationBackTraceNode(this._traceTops[0].functionInfo);for(var i=0;i<this._traceTops.length;i++){var node=this._traceTops[i];var backTraceNode=this._backTraceTree;var count=node.allocationCount;var size=node.allocationSize;while(true){backTraceNode.allocationCount+=count;backTraceNode.allocationSize+=size;node=node.parent;if(node===null){break;}
-backTraceNode=backTraceNode.addCaller(node);}}}};WebInspector.HeapSnapshotArraySlice=function(array,start,end)
-{this._array=array;this._start=start;this.length=end-start;}
-WebInspector.HeapSnapshotArraySlice.prototype={item:function(index)
-{return this._array[this._start+index];},slice:function(start,end)
-{if(typeof end==="undefined")
-end=this.length;return this._array.subarray(this._start+start,this._start+end);}}
-WebInspector.HeapSnapshotEdge=function(snapshot,edges,edgeIndex)
-{this._snapshot=snapshot;this._edges=edges;this.edgeIndex=edgeIndex||0;}
-WebInspector.HeapSnapshotEdge.prototype={clone:function()
-{return new WebInspector.HeapSnapshotEdge(this._snapshot,this._edges,this.edgeIndex);},hasStringName:function()
+return null;if(!this._bottomUpTree)
+this._buildAllocationTraceTree();return this._bottomUpTree;},_buildAllocationTraceTree:function()
+{this._bottomUpTree=new WebInspector.BottomUpAllocationNode(this);for(var i=0;i<this._traceTops.length;i++){var node=this._traceTops[i];var bottomUpNode=this._bottomUpTree;var count=node.allocationCount;var size=node.allocationSize;var liveCount=node.liveCount;var liveSize=node.liveSize;var traceId=node.id;while(true){bottomUpNode.allocationCount+=count;bottomUpNode.allocationSize+=size;bottomUpNode.liveCount+=liveCount;bottomUpNode.liveSize+=liveSize;bottomUpNode.traceTopIds.push(traceId);node=node.parent;if(node===null){break;}
+bottomUpNode=bottomUpNode.addCaller(node);}}}};WebInspector.HeapSnapshotItem=function(){}
+WebInspector.HeapSnapshotItem.prototype={itemIndex:function(){},serialize:function(){}};WebInspector.HeapSnapshotEdge=function(snapshot,edgeIndex)
+{this._snapshot=snapshot;this._edges=snapshot._containmentEdges;this.edgeIndex=edgeIndex||0;}
+WebInspector.HeapSnapshotEdge.Serialized=function(name,node,nodeIndex,type)
+{this.name=name;this.node=node;this.nodeIndex=nodeIndex;this.type=type;};WebInspector.HeapSnapshotEdge.prototype={clone:function()
+{return new WebInspector.HeapSnapshotEdge(this._snapshot,this.edgeIndex);},hasStringName:function()
 {throw new Error("Not implemented");},name:function()
 {throw new Error("Not implemented");},node:function()
 {return this._snapshot.createNode(this.nodeIndex());},nodeIndex:function()
-{return this._edges.item(this.edgeIndex+this._snapshot._edgeToNodeOffset);},rawEdges:function()
-{return this._edges;},toString:function()
+{return this._edges[this.edgeIndex+this._snapshot._edgeToNodeOffset];},toString:function()
 {return"HeapSnapshotEdge: "+this.name();},type:function()
-{return this._snapshot._edgeTypes[this._type()];},serialize:function()
-{var node=this.node();return{name:this.name(),node:node.serialize(),nodeIndex:this.nodeIndex(),type:this.type(),distance:node.distance()};},_type:function()
-{return this._edges.item(this.edgeIndex+this._snapshot._edgeTypeOffset);}};WebInspector.HeapSnapshotEdgeIterator=function(edge)
-{this.edge=edge;}
-WebInspector.HeapSnapshotEdgeIterator.prototype={rewind:function()
-{this.edge.edgeIndex=0;},hasNext:function()
-{return this.edge.edgeIndex<this.edge._edges.length;},index:function()
-{return this.edge.edgeIndex;},setIndex:function(newIndex)
-{this.edge.edgeIndex=newIndex;},item:function()
+{return this._snapshot._edgeTypes[this._type()];},itemIndex:function()
+{return this.edgeIndex;},serialize:function()
+{var node=this.node();return new WebInspector.HeapSnapshotEdge.Serialized(this.name(),node.serialize(),this.nodeIndex(),this.type());},_type:function()
+{return this._edges[this.edgeIndex+this._snapshot._edgeTypeOffset];}};WebInspector.HeapSnapshotItemIterator=function(){}
+WebInspector.HeapSnapshotItemIterator.prototype={hasNext:function(){},item:function(){},next:function(){}};WebInspector.HeapSnapshotItemIndexProvider=function(){}
+WebInspector.HeapSnapshotItemIndexProvider.prototype={itemForIndex:function(newIndex){},};WebInspector.HeapSnapshotNodeIndexProvider=function(snapshot)
+{this._node=snapshot.createNode();}
+WebInspector.HeapSnapshotNodeIndexProvider.prototype={itemForIndex:function(index)
+{this._node.nodeIndex=index;return this._node;}};WebInspector.HeapSnapshotEdgeIndexProvider=function(snapshot)
+{this._edge=snapshot.createEdge(0);}
+WebInspector.HeapSnapshotEdgeIndexProvider.prototype={itemForIndex:function(index)
+{this._edge.edgeIndex=index;return this._edge;}};WebInspector.HeapSnapshotRetainerEdgeIndexProvider=function(snapshot)
+{this._retainerEdge=snapshot.createRetainingEdge(0);}
+WebInspector.HeapSnapshotRetainerEdgeIndexProvider.prototype={itemForIndex:function(index)
+{this._retainerEdge.setRetainerIndex(index);return this._retainerEdge;}};WebInspector.HeapSnapshotEdgeIterator=function(node)
+{this._sourceNode=node;this.edge=node._snapshot.createEdge(node._edgeIndexesStart());}
+WebInspector.HeapSnapshotEdgeIterator.prototype={hasNext:function()
+{return this.edge.edgeIndex<this._sourceNode._edgeIndexesEnd();},item:function()
 {return this.edge;},next:function()
-{this.edge.edgeIndex+=this.edge._snapshot._edgeFieldsCount;}};WebInspector.HeapSnapshotRetainerEdge=function(snapshot,retainedNodeIndex,retainerIndex)
-{this._snapshot=snapshot;this._retainedNodeIndex=retainedNodeIndex;var retainedNodeOrdinal=retainedNodeIndex/snapshot._nodeFieldCount;this._firstRetainer=snapshot._firstRetainerIndex[retainedNodeOrdinal];this._retainersCount=snapshot._firstRetainerIndex[retainedNodeOrdinal+1]-this._firstRetainer;this.setRetainerIndex(retainerIndex);}
+{this.edge.edgeIndex+=this.edge._snapshot._edgeFieldsCount;}};WebInspector.HeapSnapshotRetainerEdge=function(snapshot,retainerIndex)
+{this._snapshot=snapshot;this.setRetainerIndex(retainerIndex);}
+WebInspector.HeapSnapshotRetainerEdge.Serialized=function(name,node,nodeIndex,type){this.name=name;this.node=node;this.nodeIndex=nodeIndex;this.type=type;}
 WebInspector.HeapSnapshotRetainerEdge.prototype={clone:function()
-{return new WebInspector.HeapSnapshotRetainerEdge(this._snapshot,this._retainedNodeIndex,this.retainerIndex());},hasStringName:function()
+{return new WebInspector.HeapSnapshotRetainerEdge(this._snapshot,this.retainerIndex());},hasStringName:function()
 {return this._edge().hasStringName();},name:function()
 {return this._edge().name();},node:function()
 {return this._node();},nodeIndex:function()
-{return this._nodeIndex;},retainerIndex:function()
-{return this._retainerIndex;},setRetainerIndex:function(newIndex)
-{if(newIndex!==this._retainerIndex){this._retainerIndex=newIndex;this.edgeIndex=newIndex;}},set edgeIndex(edgeIndex)
-{var retainerIndex=this._firstRetainer+edgeIndex;this._globalEdgeIndex=this._snapshot._retainingEdges[retainerIndex];this._nodeIndex=this._snapshot._retainingNodes[retainerIndex];delete this._edgeInstance;delete this._nodeInstance;},_node:function()
+{return this._retainingNodeIndex;},retainerIndex:function()
+{return this._retainerIndex;},setRetainerIndex:function(retainerIndex)
+{if(retainerIndex===this._retainerIndex)
+return;this._retainerIndex=retainerIndex;this._globalEdgeIndex=this._snapshot._retainingEdges[retainerIndex];this._retainingNodeIndex=this._snapshot._retainingNodes[retainerIndex];this._edgeInstance=null;this._nodeInstance=null;},set edgeIndex(edgeIndex)
+{this.setRetainerIndex(edgeIndex);},_node:function()
 {if(!this._nodeInstance)
-this._nodeInstance=this._snapshot.createNode(this._nodeIndex);return this._nodeInstance;},_edge:function()
-{if(!this._edgeInstance){var edgeIndex=this._globalEdgeIndex-this._node()._edgeIndexesStart();this._edgeInstance=this._snapshot.createEdge(this._node().rawEdges(),edgeIndex);}
-return this._edgeInstance;},toString:function()
-{return this._edge().toString();},serialize:function()
-{var node=this.node();return{name:this.name(),node:node.serialize(),nodeIndex:this.nodeIndex(),type:this.type(),distance:node.distance()};},type:function()
+this._nodeInstance=this._snapshot.createNode(this._retainingNodeIndex);return this._nodeInstance;},_edge:function()
+{if(!this._edgeInstance)
+this._edgeInstance=this._snapshot.createEdge(this._globalEdgeIndex);return this._edgeInstance;},toString:function()
+{return this._edge().toString();},itemIndex:function()
+{return this._retainerIndex;},serialize:function()
+{var node=this.node();return new WebInspector.HeapSnapshotRetainerEdge.Serialized(this.name(),node.serialize(),this.nodeIndex(),this.type());},type:function()
 {return this._edge().type();}}
-WebInspector.HeapSnapshotRetainerEdgeIterator=function(retainer)
-{this.retainer=retainer;}
-WebInspector.HeapSnapshotRetainerEdgeIterator.prototype={rewind:function()
-{this.retainer.setRetainerIndex(0);},hasNext:function()
-{return this.retainer.retainerIndex()<this.retainer._retainersCount;},index:function()
-{return this.retainer.retainerIndex();},setIndex:function(newIndex)
-{this.retainer.setRetainerIndex(newIndex);},item:function()
+WebInspector.HeapSnapshotRetainerEdgeIterator=function(retainedNode)
+{var snapshot=retainedNode._snapshot;var retainedNodeOrdinal=retainedNode._ordinal();var retainerIndex=snapshot._firstRetainerIndex[retainedNodeOrdinal];this._retainersEnd=snapshot._firstRetainerIndex[retainedNodeOrdinal+1];this.retainer=snapshot.createRetainingEdge(retainerIndex);}
+WebInspector.HeapSnapshotRetainerEdgeIterator.prototype={hasNext:function()
+{return this.retainer.retainerIndex()<this._retainersEnd;},item:function()
 {return this.retainer;},next:function()
 {this.retainer.setRetainerIndex(this.retainer.retainerIndex()+1);}};WebInspector.HeapSnapshotNode=function(snapshot,nodeIndex)
-{this._snapshot=snapshot;this._firstNodeIndex=nodeIndex;this.nodeIndex=nodeIndex;}
+{this._snapshot=snapshot;this.nodeIndex=nodeIndex||0;}
+WebInspector.HeapSnapshotNode.Serialized=function(id,name,distance,nodeIndex,retainedSize,selfSize,type){this.id=id;this.name=name;this.distance=distance;this.nodeIndex=nodeIndex;this.retainedSize=retainedSize;this.selfSize=selfSize;this.type=type;}
 WebInspector.HeapSnapshotNode.prototype={distance:function()
 {return this._snapshot._nodeDistances[this.nodeIndex/this._snapshot._nodeFieldCount];},className:function()
 {throw new Error("Not implemented");},classIndex:function()
 {throw new Error("Not implemented");},dominatorIndex:function()
 {var nodeFieldCount=this._snapshot._nodeFieldCount;return this._snapshot._dominatorsTree[this.nodeIndex/this._snapshot._nodeFieldCount]*nodeFieldCount;},edges:function()
-{return new WebInspector.HeapSnapshotEdgeIterator(this._snapshot.createEdge(this.rawEdges(),0));},edgesCount:function()
+{return new WebInspector.HeapSnapshotEdgeIterator(this);},edgesCount:function()
 {return(this._edgeIndexesEnd()-this._edgeIndexesStart())/this._snapshot._edgeFieldsCount;},id:function()
 {throw new Error("Not implemented");},isRoot:function()
 {return this.nodeIndex===this._snapshot._rootNodeIndex;},name:function()
-{return this._snapshot._strings[this._name()];},rawEdges:function()
-{return new WebInspector.HeapSnapshotArraySlice(this._snapshot._containmentEdges,this._edgeIndexesStart(),this._edgeIndexesEnd());},retainedSize:function()
-{var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeRetainedSizeOffset];},retainers:function()
-{return new WebInspector.HeapSnapshotRetainerEdgeIterator(this._snapshot.createRetainingEdge(this.nodeIndex,0));},selfSize:function()
+{return this._snapshot._strings[this._name()];},retainedSize:function()
+{return this._snapshot._retainedSizes[this._ordinal()];},retainers:function()
+{return new WebInspector.HeapSnapshotRetainerEdgeIterator(this);},retainersCount:function()
+{var snapshot=this._snapshot;var ordinal=this._ordinal();return snapshot._firstRetainerIndex[ordinal+1]-snapshot._firstRetainerIndex[ordinal];},selfSize:function()
 {var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeSelfSizeOffset];},type:function()
-{return this._snapshot._nodeTypes[this._type()];},serialize:function()
-{return{id:this.id(),name:this.name(),distance:this.distance(),nodeIndex:this.nodeIndex,retainedSize:this.retainedSize(),selfSize:this.selfSize(),type:this.type(),};},_name:function()
+{return this._snapshot._nodeTypes[this._type()];},traceNodeId:function()
+{var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeTraceNodeIdOffset];},itemIndex:function()
+{return this.nodeIndex;},serialize:function()
+{return new WebInspector.HeapSnapshotNode.Serialized(this.id(),this.name(),this.distance(),this.nodeIndex,this.retainedSize(),this.selfSize(),this.type());},_name:function()
 {var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeNameOffset];},_edgeIndexesStart:function()
 {return this._snapshot._firstEdgeIndexes[this._ordinal()];},_edgeIndexesEnd:function()
 {return this._snapshot._firstEdgeIndexes[this._ordinal()+1];},_ordinal:function()
 {return this.nodeIndex/this._snapshot._nodeFieldCount;},_nextNodeIndex:function()
 {return this.nodeIndex+this._snapshot._nodeFieldCount;},_type:function()
 {var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeTypeOffset];}};WebInspector.HeapSnapshotNodeIterator=function(node)
 {this.node=node;this._nodesLength=node._snapshot._nodes.length;}
-WebInspector.HeapSnapshotNodeIterator.prototype={rewind:function()
-{this.node.nodeIndex=this.node._firstNodeIndex;},hasNext:function()
-{return this.node.nodeIndex<this._nodesLength;},index:function()
-{return this.node.nodeIndex;},setIndex:function(newIndex)
-{this.node.nodeIndex=newIndex;},item:function()
+WebInspector.HeapSnapshotNodeIterator.prototype={hasNext:function()
+{return this.node.nodeIndex<this._nodesLength;},item:function()
 {return this.node;},next:function()
 {this.node.nodeIndex=this.node._nextNodeIndex();}}
+WebInspector.HeapSnapshotIndexRangeIterator=function(itemProvider,indexes)
+{this._itemProvider=itemProvider;this._indexes=indexes;this._position=0;}
+WebInspector.HeapSnapshotIndexRangeIterator.prototype={hasNext:function()
+{return this._position<this._indexes.length},item:function()
+{var index=this._indexes[this._position];return this._itemProvider.itemForIndex(index);},next:function()
+{++this._position;}}
+WebInspector.HeapSnapshotFilteredIterator=function(iterator,filter)
+{this._iterator=iterator;this._filter=filter;this._skipFilteredItems();}
+WebInspector.HeapSnapshotFilteredIterator.prototype={hasNext:function()
+{return this._iterator.hasNext();},item:function()
+{return this._iterator.item();},next:function()
+{this._iterator.next();this._skipFilteredItems();},_skipFilteredItems:function()
+{while(this._iterator.hasNext()&&!this._filter(this._iterator.item())){this._iterator.next();}}}
 WebInspector.HeapSnapshotProgress=function(dispatcher)
 {this._dispatcher=dispatcher;}
 WebInspector.HeapSnapshotProgress.prototype={updateStatus:function(status)
 {this._sendUpdateEvent(WebInspector.UIString(status));},updateProgress:function(title,value,total)
 {var percentValue=((total?(value/total):0)*100).toFixed(0);this._sendUpdateEvent(WebInspector.UIString(title,percentValue));},_sendUpdateEvent:function(text)
 {if(this._dispatcher)
 this._dispatcher.sendEvent(WebInspector.HeapSnapshotProgressEvent.Update,text);}}
-WebInspector.HeapSnapshot=function(profile,progress)
-{this.uid=profile.snapshot.uid;this._nodes=profile.nodes;this._containmentEdges=profile.edges;this._metaNode=profile.snapshot.meta;this._strings=profile.strings;this._progress=progress;this._noDistance=-5;this._rootNodeIndex=0;if(profile.snapshot.root_index)
-this._rootNodeIndex=profile.snapshot.root_index;this._snapshotDiffs={};this._aggregatesForDiff=null;this._init();if(WebInspector.HeapSnapshot.enableAllocationProfiler){this._progress.updateStatus("Buiding allocation statistics\u2026");this._allocationProfile=new WebInspector.AllocationProfile(profile);this._progress.updateStatus("Done");}}
-WebInspector.HeapSnapshot.enableAllocationProfiler=false;function HeapSnapshotMetainfo()
+WebInspector.HeapSnapshot=function(profile,progress,showHiddenData)
+{this._nodes=profile.nodes;this._containmentEdges=profile.edges;this._metaNode=profile.snapshot.meta;this._strings=profile.strings;this._progress=progress;this._noDistance=-5;this._rootNodeIndex=0;if(profile.snapshot.root_index)
+this._rootNodeIndex=profile.snapshot.root_index;this._snapshotDiffs={};this._aggregatesForDiff=null;this._aggregates={};this._aggregatesSortedFlags={};this._showHiddenData=showHiddenData;this._init();if(profile.snapshot.trace_function_count){this._progress.updateStatus("Buiding allocation statistics\u2026");var nodes=this._nodes;var nodesLength=nodes.length;var nodeFieldCount=this._nodeFieldCount;var node=this.rootNode();var liveObjects={};for(var nodeIndex=0;nodeIndex<nodesLength;nodeIndex+=nodeFieldCount){node.nodeIndex=nodeIndex;var traceNodeId=node.traceNodeId();var stats=liveObjects[traceNodeId];if(!stats){liveObjects[traceNodeId]=stats={count:0,size:0,ids:[]};}
+stats.count++;stats.size+=node.selfSize();stats.ids.push(node.id());}
+this._allocationProfile=new WebInspector.AllocationProfile(profile,liveObjects);this._progress.updateStatus("Done");}}
+function HeapSnapshotMetainfo()
 {this.node_fields=[];this.node_types=[];this.edge_fields=[];this.edge_types=[];this.trace_function_info_fields=[];this.trace_node_fields=[];this.type_strings={};}
 function HeapSnapshotHeader()
-{this.title="";this.uid=0;this.meta=new HeapSnapshotMetainfo();this.node_count=0;this.edge_count=0;}
+{this.title="";this.meta=new HeapSnapshotMetainfo();this.node_count=0;this.edge_count=0;}
 WebInspector.HeapSnapshot.prototype={_init:function()
-{var meta=this._metaNode;this._nodeTypeOffset=meta.node_fields.indexOf("type");this._nodeNameOffset=meta.node_fields.indexOf("name");this._nodeIdOffset=meta.node_fields.indexOf("id");this._nodeSelfSizeOffset=meta.node_fields.indexOf("self_size");this._nodeEdgeCountOffset=meta.node_fields.indexOf("edge_count");this._nodeFieldCount=meta.node_fields.length;this._nodeTypes=meta.node_types[this._nodeTypeOffset];this._nodeHiddenType=this._nodeTypes.indexOf("hidden");this._nodeObjectType=this._nodeTypes.indexOf("object");this._nodeNativeType=this._nodeTypes.indexOf("native");this._nodeConsStringType=this._nodeTypes.indexOf("concatenated string");this._nodeSlicedStringType=this._nodeTypes.indexOf("sliced string");this._nodeCodeType=this._nodeTypes.indexOf("code");this._nodeSyntheticType=this._nodeTypes.indexOf("synthetic");this._edgeFieldsCount=meta.edge_fields.length;this._edgeTypeOffset=meta.edge_fields.indexOf("type");this._edgeNameOffset=meta.edge_fields.indexOf("name_or_index");this._edgeToNodeOffset=meta.edge_fields.indexOf("to_node");this._edgeTypes=meta.edge_types[this._edgeTypeOffset];this._edgeTypes.push("invisible");this._edgeElementType=this._edgeTypes.indexOf("element");this._edgeHiddenType=this._edgeTypes.indexOf("hidden");this._edgeInternalType=this._edgeTypes.indexOf("internal");this._edgeShortcutType=this._edgeTypes.indexOf("shortcut");this._edgeWeakType=this._edgeTypes.indexOf("weak");this._edgeInvisibleType=this._edgeTypes.indexOf("invisible");this.nodeCount=this._nodes.length/this._nodeFieldCount;this._edgeCount=this._containmentEdges.length/this._edgeFieldsCount;this._progress.updateStatus("Building edge indexes\u2026");this._buildEdgeIndexes();this._progress.updateStatus("Marking invisible edges\u2026");this._markInvisibleEdges();this._progress.updateStatus("Building retainers\u2026");this._buildRetainers();this._progress.updateStatus("Calculating node flags\u2026");this._calculateFlags();this._progress.updateStatus("Calculating distances\u2026");this._calculateDistances();this._progress.updateStatus("Building postorder index\u2026");var result=this._buildPostOrderIndex();this._progress.updateStatus("Building dominator tree\u2026");this._dominatorsTree=this._buildDominatorTree(result.postOrderIndex2NodeOrdinal,result.nodeOrdinal2PostOrderIndex);this._progress.updateStatus("Calculating retained sizes\u2026");this._calculateRetainedSizes(result.postOrderIndex2NodeOrdinal);this._progress.updateStatus("Buiding dominated nodes\u2026");this._buildDominatedNodes();this._progress.updateStatus("Finished processing.");},_buildEdgeIndexes:function()
+{var meta=this._metaNode;this._nodeTypeOffset=meta.node_fields.indexOf("type");this._nodeNameOffset=meta.node_fields.indexOf("name");this._nodeIdOffset=meta.node_fields.indexOf("id");this._nodeSelfSizeOffset=meta.node_fields.indexOf("self_size");this._nodeEdgeCountOffset=meta.node_fields.indexOf("edge_count");this._nodeTraceNodeIdOffset=meta.node_fields.indexOf("trace_node_id");this._nodeFieldCount=meta.node_fields.length;this._nodeTypes=meta.node_types[this._nodeTypeOffset];this._nodeHiddenType=this._nodeTypes.indexOf("hidden");this._nodeObjectType=this._nodeTypes.indexOf("object");this._nodeNativeType=this._nodeTypes.indexOf("native");this._nodeConsStringType=this._nodeTypes.indexOf("concatenated string");this._nodeSlicedStringType=this._nodeTypes.indexOf("sliced string");this._nodeCodeType=this._nodeTypes.indexOf("code");this._nodeSyntheticType=this._nodeTypes.indexOf("synthetic");this._edgeFieldsCount=meta.edge_fields.length;this._edgeTypeOffset=meta.edge_fields.indexOf("type");this._edgeNameOffset=meta.edge_fields.indexOf("name_or_index");this._edgeToNodeOffset=meta.edge_fields.indexOf("to_node");this._edgeTypes=meta.edge_types[this._edgeTypeOffset];this._edgeTypes.push("invisible");this._edgeElementType=this._edgeTypes.indexOf("element");this._edgeHiddenType=this._edgeTypes.indexOf("hidden");this._edgeInternalType=this._edgeTypes.indexOf("internal");this._edgeShortcutType=this._edgeTypes.indexOf("shortcut");this._edgeWeakType=this._edgeTypes.indexOf("weak");this._edgeInvisibleType=this._edgeTypes.indexOf("invisible");this.nodeCount=this._nodes.length/this._nodeFieldCount;this._edgeCount=this._containmentEdges.length/this._edgeFieldsCount;this._progress.updateStatus("Building edge indexes\u2026");this._buildEdgeIndexes();this._progress.updateStatus("Building retainers\u2026");this._buildRetainers();this._progress.updateStatus("Calculating node flags\u2026");this._calculateFlags();this._progress.updateStatus("Calculating distances\u2026");this._calculateDistances();this._progress.updateStatus("Building postorder index\u2026");var result=this._buildPostOrderIndex();this._progress.updateStatus("Building dominator tree\u2026");this._dominatorsTree=this._buildDominatorTree(result.postOrderIndex2NodeOrdinal,result.nodeOrdinal2PostOrderIndex);this._progress.updateStatus("Calculating retained sizes\u2026");this._calculateRetainedSizes(result.postOrderIndex2NodeOrdinal);this._progress.updateStatus("Buiding dominated nodes\u2026");this._buildDominatedNodes();this._progress.updateStatus("Calculating statistics\u2026");this._calculateStatistics();this._progress.updateStatus("Finished processing.");},_buildEdgeIndexes:function()
 {var nodes=this._nodes;var nodeCount=this.nodeCount;var firstEdgeIndexes=this._firstEdgeIndexes=new Uint32Array(nodeCount+1);var nodeFieldCount=this._nodeFieldCount;var edgeFieldsCount=this._edgeFieldsCount;var nodeEdgeCountOffset=this._nodeEdgeCountOffset;firstEdgeIndexes[nodeCount]=this._containmentEdges.length;for(var nodeOrdinal=0,edgeIndex=0;nodeOrdinal<nodeCount;++nodeOrdinal){firstEdgeIndexes[nodeOrdinal]=edgeIndex;edgeIndex+=nodes[nodeOrdinal*nodeFieldCount+nodeEdgeCountOffset]*edgeFieldsCount;}},_buildRetainers:function()
 {var retainingNodes=this._retainingNodes=new Uint32Array(this._edgeCount);var retainingEdges=this._retainingEdges=new Uint32Array(this._edgeCount);var firstRetainerIndex=this._firstRetainerIndex=new Uint32Array(this.nodeCount+1);var containmentEdges=this._containmentEdges;var edgeFieldsCount=this._edgeFieldsCount;var nodeFieldCount=this._nodeFieldCount;var edgeToNodeOffset=this._edgeToNodeOffset;var firstEdgeIndexes=this._firstEdgeIndexes;var nodeCount=this.nodeCount;for(var toNodeFieldIndex=edgeToNodeOffset,l=containmentEdges.length;toNodeFieldIndex<l;toNodeFieldIndex+=edgeFieldsCount){var toNodeIndex=containmentEdges[toNodeFieldIndex];if(toNodeIndex%nodeFieldCount)
 throw new Error("Invalid toNodeIndex "+toNodeIndex);++firstRetainerIndex[toNodeIndex/nodeFieldCount];}
 for(var i=0,firstUnusedRetainerSlot=0;i<nodeCount;i++){var retainersCount=firstRetainerIndex[i];firstRetainerIndex[i]=firstUnusedRetainerSlot;retainingNodes[firstUnusedRetainerSlot]=retainersCount;firstUnusedRetainerSlot+=retainersCount;}
 firstRetainerIndex[nodeCount]=retainingNodes.length;var nextNodeFirstEdgeIndex=firstEdgeIndexes[0];for(var srcNodeOrdinal=0;srcNodeOrdinal<nodeCount;++srcNodeOrdinal){var firstEdgeIndex=nextNodeFirstEdgeIndex;nextNodeFirstEdgeIndex=firstEdgeIndexes[srcNodeOrdinal+1];var srcNodeIndex=srcNodeOrdinal*nodeFieldCount;for(var edgeIndex=firstEdgeIndex;edgeIndex<nextNodeFirstEdgeIndex;edgeIndex+=edgeFieldsCount){var toNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];if(toNodeIndex%nodeFieldCount)
 throw new Error("Invalid toNodeIndex "+toNodeIndex);var firstRetainerSlotIndex=firstRetainerIndex[toNodeIndex/nodeFieldCount];var nextUnusedRetainerSlotIndex=firstRetainerSlotIndex+(--retainingNodes[firstRetainerSlotIndex]);retainingNodes[nextUnusedRetainerSlotIndex]=srcNodeIndex;retainingEdges[nextUnusedRetainerSlotIndex]=edgeIndex;}}},createNode:function(nodeIndex)
-{throw new Error("Not implemented");},createEdge:function(edges,edgeIndex)
-{throw new Error("Not implemented");},createRetainingEdge:function(retainedNodeIndex,retainerIndex)
+{throw new Error("Not implemented");},createEdge:function(edgeIndex)
+{throw new Error("Not implemented");},createRetainingEdge:function(retainerIndex)
 {throw new Error("Not implemented");},dispose:function()
-{delete this._nodes;delete this._strings;delete this._retainingEdges;delete this._retainingNodes;delete this._firstRetainerIndex;if(this._aggregates){delete this._aggregates;delete this._aggregatesSortedFlags;}
-delete this._dominatedNodes;delete this._firstDominatedNodeIndex;delete this._nodeDistances;delete this._dominatorsTree;},_allNodes:function()
+{delete this._nodes;delete this._strings;delete this._retainingEdges;delete this._retainingNodes;delete this._firstRetainerIndex;delete this._aggregates;delete this._aggregatesSortedFlags;delete this._dominatedNodes;delete this._firstDominatedNodeIndex;delete this._nodeDistances;delete this._dominatorsTree;},_allNodes:function()
 {return new WebInspector.HeapSnapshotNodeIterator(this.rootNode());},rootNode:function()
 {return this.createNode(this._rootNodeIndex);},get rootNodeIndex()
 {return this._rootNodeIndex;},get totalSize()
 {return this.rootNode().retainedSize();},_getDominatedIndex:function(nodeIndex)
 {if(nodeIndex%this._nodeFieldCount)
 throw new Error("Invalid nodeIndex: "+nodeIndex);return this._firstDominatedNodeIndex[nodeIndex/this._nodeFieldCount];},_dominatedNodesOfNode:function(node)
-{var dominatedIndexFrom=this._getDominatedIndex(node.nodeIndex);var dominatedIndexTo=this._getDominatedIndex(node._nextNodeIndex());return new WebInspector.HeapSnapshotArraySlice(this._dominatedNodes,dominatedIndexFrom,dominatedIndexTo);},aggregates:function(sortedIndexes,key,filterString)
-{if(!this._aggregates){this._aggregates={};this._aggregatesSortedFlags={};}
-var aggregatesByClassName=this._aggregates[key];if(aggregatesByClassName){if(sortedIndexes&&!this._aggregatesSortedFlags[key]){this._sortAggregateIndexes(aggregatesByClassName);this._aggregatesSortedFlags[key]=sortedIndexes;}
-return aggregatesByClassName;}
-var filter;if(filterString)
-filter=this._parseFilter(filterString);var aggregates=this._buildAggregates(filter);this._calculateClassesRetainedSize(aggregates.aggregatesByClassIndex,filter);aggregatesByClassName=aggregates.aggregatesByClassName;if(sortedIndexes)
-this._sortAggregateIndexes(aggregatesByClassName);this._aggregatesSortedFlags[key]=sortedIndexes;this._aggregates[key]=aggregatesByClassName;return aggregatesByClassName;},allocationTracesTops:function()
+{var dominatedIndexFrom=this._getDominatedIndex(node.nodeIndex);var dominatedIndexTo=this._getDominatedIndex(node._nextNodeIndex());return this._dominatedNodes.subarray(dominatedIndexFrom,dominatedIndexTo);},aggregatesWithFilter:function(nodeFilter)
+{var minNodeId=nodeFilter.minNodeId;var maxNodeId=nodeFilter.maxNodeId;var allocationNodeId=nodeFilter.allocationNodeId;var key;var filter;if(typeof allocationNodeId==="number"){filter=this._createAllocationStackFilter(allocationNodeId);}else if(typeof minNodeId==="number"&&typeof maxNodeId==="number"){key=minNodeId+".."+maxNodeId;filter=this._createNodeIdFilter(minNodeId,maxNodeId);}else{key="allObjects";}
+return this.aggregates(false,key,filter);},_createNodeIdFilter:function(minNodeId,maxNodeId)
+{function nodeIdFilter(node)
+{var id=node.id();return id>minNodeId&&id<=maxNodeId;}
+return nodeIdFilter;},_createAllocationStackFilter:function(bottomUpAllocationNodeId)
+{var traceIds=this._allocationProfile.traceIds(bottomUpAllocationNodeId);if(!traceIds.length)
+return undefined;var set={};for(var i=0;i<traceIds.length;i++)
+set[traceIds[i]]=true;function traceIdFilter(node)
+{return!!set[node.traceNodeId()];};return traceIdFilter;},aggregates:function(sortedIndexes,key,filter)
+{var aggregatesByClassName=key&&this._aggregates[key];if(!aggregatesByClassName){var aggregates=this._buildAggregates(filter);this._calculateClassesRetainedSize(aggregates.aggregatesByClassIndex,filter);aggregatesByClassName=aggregates.aggregatesByClassName;if(key)
+this._aggregates[key]=aggregatesByClassName;}
+if(sortedIndexes&&(!key||!this._aggregatesSortedFlags[key])){this._sortAggregateIndexes(aggregatesByClassName);if(key)
+this._aggregatesSortedFlags[key]=sortedIndexes;}
+return aggregatesByClassName;},allocationTracesTops:function()
 {return this._allocationProfile.serializeTraceTops();},allocationNodeCallers:function(nodeId)
 {return this._allocationProfile.serializeCallers(nodeId);},aggregatesForDiff:function()
 {if(this._aggregatesForDiff)
 return this._aggregatesForDiff;var aggregatesByClassName=this.aggregates(true,"allObjects");this._aggregatesForDiff={};var node=this.createNode();for(var className in aggregatesByClassName){var aggregate=aggregatesByClassName[className];var indexes=aggregate.idxs;var ids=new Array(indexes.length);var selfSizes=new Array(indexes.length);for(var i=0;i<indexes.length;i++){node.nodeIndex=indexes[i];ids[i]=node.id();selfSizes[i]=node.selfSize();}
 this._aggregatesForDiff[className]={indexes:indexes,ids:ids,selfSizes:selfSizes};}
 return this._aggregatesForDiff;},_isUserRoot:function(node)
 {return true;},forEachRoot:function(action,userRootsOnly)
 {for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(!userRootsOnly||this._isUserRoot(node))
 action(node);}},_calculateDistances:function()
-{var nodeFieldCount=this._nodeFieldCount;var nodeCount=this.nodeCount;var distances=new Int32Array(nodeCount);var noDistance=this._noDistance;for(var i=0;i<nodeCount;++i)
-distances[i]=noDistance;var nodesToVisit=new Uint32Array(this.nodeCount);var nodesToVisitLength=0;function enqueueNode(node)
+{var nodeFieldCount=this._nodeFieldCount;var nodeCount=this.nodeCount;var distances=this._nodeDistances=new Int32Array(nodeCount);var noDistance=this._noDistance;for(var i=0;i<nodeCount;++i)
+distances[i]=noDistance;var nodesToVisit=new Uint32Array(this.nodeCount);var nodesToVisitLength=0;function enqueueNode(distance,node)
 {var ordinal=node._ordinal();if(distances[ordinal]!==noDistance)
-return;distances[ordinal]=0;nodesToVisit[nodesToVisitLength++]=node.nodeIndex;}
-this.forEachRoot(enqueueNode,true);this._bfs(nodesToVisit,nodesToVisitLength,distances);nodesToVisitLength=0;this.forEachRoot(enqueueNode);this._bfs(nodesToVisit,nodesToVisitLength,distances);this._nodeDistances=distances;},_bfs:function(nodesToVisit,nodesToVisitLength,distances)
+return;distances[ordinal]=distance;nodesToVisit[nodesToVisitLength++]=node.nodeIndex;}
+this.forEachRoot(enqueueNode.bind(null,1),true);this._bfs(nodesToVisit,nodesToVisitLength,distances);nodesToVisitLength=0;this.forEachRoot(enqueueNode.bind(null,0),false);this._bfs(nodesToVisit,nodesToVisitLength,distances);},_bfs:function(nodesToVisit,nodesToVisitLength,distances)
 {var edgeFieldsCount=this._edgeFieldsCount;var nodeFieldCount=this._nodeFieldCount;var containmentEdges=this._containmentEdges;var firstEdgeIndexes=this._firstEdgeIndexes;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeTypeOffset=this._edgeTypeOffset;var nodeCount=this.nodeCount;var containmentEdgesLength=containmentEdges.length;var edgeWeakType=this._edgeWeakType;var noDistance=this._noDistance;var index=0;while(index<nodesToVisitLength){var nodeIndex=nodesToVisit[index++];var nodeOrdinal=nodeIndex/nodeFieldCount;var distance=distances[nodeOrdinal]+1;var firstEdgeIndex=firstEdgeIndexes[nodeOrdinal];var edgesEnd=firstEdgeIndexes[nodeOrdinal+1];for(var edgeIndex=firstEdgeIndex;edgeIndex<edgesEnd;edgeIndex+=edgeFieldsCount){var edgeType=containmentEdges[edgeIndex+edgeTypeOffset];if(edgeType==edgeWeakType)
 continue;var childNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];var childNodeOrdinal=childNodeIndex/nodeFieldCount;if(distances[childNodeOrdinal]!==noDistance)
 continue;distances[childNodeOrdinal]=distance;nodesToVisit[nodesToVisitLength++]=childNodeIndex;}}
 if(nodesToVisitLength>nodeCount)
 throw new Error("BFS failed. Nodes to visit ("+nodesToVisitLength+") is more than nodes count ("+nodeCount+")");},_buildAggregates:function(filter)
 {var aggregates={};var aggregatesByClassName={};var classIndexes=[];var nodes=this._nodes;var mapAndFlag=this.userObjectsMapAndFlag();var flags=mapAndFlag?mapAndFlag.map:null;var flag=mapAndFlag?mapAndFlag.flag:0;var nodesLength=nodes.length;var nodeNativeType=this._nodeNativeType;var nodeFieldCount=this._nodeFieldCount;var selfSizeOffset=this._nodeSelfSizeOffset;var nodeTypeOffset=this._nodeTypeOffset;var node=this.rootNode();var nodeDistances=this._nodeDistances;for(var nodeIndex=0;nodeIndex<nodesLength;nodeIndex+=nodeFieldCount){var nodeOrdinal=nodeIndex/nodeFieldCount;if(flags&&!(flags[nodeOrdinal]&flag))
 continue;node.nodeIndex=nodeIndex;if(filter&&!filter(node))
 continue;var selfSize=nodes[nodeIndex+selfSizeOffset];if(!selfSize&&nodes[nodeIndex+nodeTypeOffset]!==nodeNativeType)
 continue;var classIndex=node.classIndex();if(!(classIndex in aggregates)){var nodeType=node.type();var nameMatters=nodeType==="object"||nodeType==="native";var value={count:1,distance:nodeDistances[nodeOrdinal],self:selfSize,maxRet:0,type:nodeType,name:nameMatters?node.name():null,idxs:[nodeIndex]};aggregates[classIndex]=value;classIndexes.push(classIndex);aggregatesByClassName[node.className()]=value;}else{var clss=aggregates[classIndex];clss.distance=Math.min(clss.distance,nodeDistances[nodeOrdinal]);++clss.count;clss.self+=selfSize;clss.idxs.push(nodeIndex);}}
 for(var i=0,l=classIndexes.length;i<l;++i){var classIndex=classIndexes[i];aggregates[classIndex].idxs=aggregates[classIndex].idxs.slice();}
@@ skipping 17 matching lines @@
 continue;var retainerNodeOrdinal=retainerNodeIndex/nodeFieldCount;var retainerNodeFlag=!flags||(flags[retainerNodeOrdinal]&flag);if(retainerNodeIndex!==rootNodeIndex&&nodeFlag&&!retainerNodeFlag)
 continue;var retanerPostOrderIndex=nodeOrdinal2PostOrderIndex[retainerNodeOrdinal];if(dominators[retanerPostOrderIndex]!==noEntry){if(newDominatorIndex===noEntry)
 newDominatorIndex=retanerPostOrderIndex;else{while(retanerPostOrderIndex!==newDominatorIndex){while(retanerPostOrderIndex<newDominatorIndex)
 retanerPostOrderIndex=dominators[retanerPostOrderIndex];while(newDominatorIndex<retanerPostOrderIndex)
 newDominatorIndex=dominators[newDominatorIndex];}}
 if(newDominatorIndex===rootPostOrderedIndex)
 break;}}
 if(newDominatorIndex!==noEntry&&dominators[postOrderIndex]!==newDominatorIndex){dominators[postOrderIndex]=newDominatorIndex;changed=true;nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];beginEdgeToNodeFieldIndex=firstEdgeIndexes[nodeOrdinal]+edgeToNodeOffset;endEdgeToNodeFieldIndex=firstEdgeIndexes[nodeOrdinal+1];for(var toNodeFieldIndex=beginEdgeToNodeFieldIndex;toNodeFieldIndex<endEdgeToNodeFieldIndex;toNodeFieldIndex+=edgeFieldsCount){var childNodeOrdinal=containmentEdges[toNodeFieldIndex]/nodeFieldCount;affected[nodeOrdinal2PostOrderIndex[childNodeOrdinal]]=1;}}}}
 var dominatorsTree=new Uint32Array(nodesCount);for(var postOrderIndex=0,l=dominators.length;postOrderIndex<l;++postOrderIndex){nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];dominatorsTree[nodeOrdinal]=postOrderIndex2NodeOrdinal[dominators[postOrderIndex]];}
 return dominatorsTree;},_calculateRetainedSizes:function(postOrderIndex2NodeOrdinal)
-{var nodeCount=this.nodeCount;var nodes=this._nodes;var nodeSelfSizeOffset=this._nodeSelfSizeOffset;var nodeFieldCount=this._nodeFieldCount;var dominatorsTree=this._dominatorsTree;var nodeRetainedSizeOffset=this._nodeRetainedSizeOffset=this._nodeEdgeCountOffset;delete this._nodeEdgeCountOffset;for(var nodeIndex=0,l=nodes.length;nodeIndex<l;nodeIndex+=nodeFieldCount)
-nodes[nodeIndex+nodeRetainedSizeOffset]=nodes[nodeIndex+nodeSelfSizeOffset];for(var postOrderIndex=0;postOrderIndex<nodeCount-1;++postOrderIndex){var nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];var nodeIndex=nodeOrdinal*nodeFieldCount;var dominatorIndex=dominatorsTree[nodeOrdinal]*nodeFieldCount;nodes[dominatorIndex+nodeRetainedSizeOffset]+=nodes[nodeIndex+nodeRetainedSizeOffset];}},_buildDominatedNodes:function()
+{var nodeCount=this.nodeCount;var nodes=this._nodes;var nodeSelfSizeOffset=this._nodeSelfSizeOffset;var nodeFieldCount=this._nodeFieldCount;var dominatorsTree=this._dominatorsTree;var retainedSizes=this._retainedSizes=new Float64Array(nodeCount);for(var nodeOrdinal=0;nodeOrdinal<nodeCount;++nodeOrdinal)
+retainedSizes[nodeOrdinal]=nodes[nodeOrdinal*nodeFieldCount+nodeSelfSizeOffset];for(var postOrderIndex=0;postOrderIndex<nodeCount-1;++postOrderIndex){var nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];var dominatorOrdinal=dominatorsTree[nodeOrdinal];retainedSizes[dominatorOrdinal]+=retainedSizes[nodeOrdinal];}},_buildDominatedNodes:function()
 {var indexArray=this._firstDominatedNodeIndex=new Uint32Array(this.nodeCount+1);var dominatedNodes=this._dominatedNodes=new Uint32Array(this.nodeCount-1);var nodeFieldCount=this._nodeFieldCount;var dominatorsTree=this._dominatorsTree;var fromNodeOrdinal=0;var toNodeOrdinal=this.nodeCount;var rootNodeOrdinal=this._rootNodeIndex/nodeFieldCount;if(rootNodeOrdinal===fromNodeOrdinal)
 fromNodeOrdinal=1;else if(rootNodeOrdinal===toNodeOrdinal-1)
 toNodeOrdinal=toNodeOrdinal-1;else
 throw new Error("Root node is expected to be either first or last");for(var nodeOrdinal=fromNodeOrdinal;nodeOrdinal<toNodeOrdinal;++nodeOrdinal)
 ++indexArray[dominatorsTree[nodeOrdinal]];var firstDominatedNodeIndex=0;for(var i=0,l=this.nodeCount;i<l;++i){var dominatedCount=dominatedNodes[firstDominatedNodeIndex]=indexArray[i];indexArray[i]=firstDominatedNodeIndex;firstDominatedNodeIndex+=dominatedCount;}
-indexArray[this.nodeCount]=dominatedNodes.length;for(var nodeOrdinal=fromNodeOrdinal;nodeOrdinal<toNodeOrdinal;++nodeOrdinal){var dominatorOrdinal=dominatorsTree[nodeOrdinal];var dominatedRefIndex=indexArray[dominatorOrdinal];dominatedRefIndex+=(--dominatedNodes[dominatedRefIndex]);dominatedNodes[dominatedRefIndex]=nodeOrdinal*nodeFieldCount;}},_markInvisibleEdges:function()
-{throw new Error("Not implemented");},_calculateFlags:function()
+indexArray[this.nodeCount]=dominatedNodes.length;for(var nodeOrdinal=fromNodeOrdinal;nodeOrdinal<toNodeOrdinal;++nodeOrdinal){var dominatorOrdinal=dominatorsTree[nodeOrdinal];var dominatedRefIndex=indexArray[dominatorOrdinal];dominatedRefIndex+=(--dominatedNodes[dominatedRefIndex]);dominatedNodes[dominatedRefIndex]=nodeOrdinal*nodeFieldCount;}},_calculateFlags:function()
+{throw new Error("Not implemented");},_calculateStatistics:function()
 {throw new Error("Not implemented");},userObjectsMapAndFlag:function()
 {throw new Error("Not implemented");},calculateSnapshotDiff:function(baseSnapshotId,baseSnapshotAggregates)
 {var snapshotDiff=this._snapshotDiffs[baseSnapshotId];if(snapshotDiff)
 return snapshotDiff;snapshotDiff={};var aggregates=this.aggregates(true,"allObjects");for(var className in baseSnapshotAggregates){var baseAggregate=baseSnapshotAggregates[className];var diff=this._calculateDiffForClass(baseAggregate,aggregates[className]);if(diff)
 snapshotDiff[className]=diff;}
-var emptyBaseAggregate={ids:[],indexes:[],selfSizes:[]};for(var className in aggregates){if(className in baseSnapshotAggregates)
+var emptyBaseAggregate=new WebInspector.HeapSnapshotCommon.AggregateForDiff();for(var className in aggregates){if(className in baseSnapshotAggregates)
 continue;snapshotDiff[className]=this._calculateDiffForClass(emptyBaseAggregate,aggregates[className]);}
 this._snapshotDiffs[baseSnapshotId]=snapshotDiff;return snapshotDiff;},_calculateDiffForClass:function(baseAggregate,aggregate)
-{var baseIds=baseAggregate.ids;var baseIndexes=baseAggregate.indexes;var baseSelfSizes=baseAggregate.selfSizes;var indexes=aggregate?aggregate.idxs:[];var i=0,l=baseIds.length;var j=0,m=indexes.length;var diff={addedCount:0,removedCount:0,addedSize:0,removedSize:0,deletedIndexes:[],addedIndexes:[]};var nodeB=this.createNode(indexes[j]);while(i<l&&j<m){var nodeAId=baseIds[i];if(nodeAId<nodeB.id()){diff.deletedIndexes.push(baseIndexes[i]);diff.removedCount++;diff.removedSize+=baseSelfSizes[i];++i;}else if(nodeAId>nodeB.id()){diff.addedIndexes.push(indexes[j]);diff.addedCount++;diff.addedSize+=nodeB.selfSize();nodeB.nodeIndex=indexes[++j];}else{++i;nodeB.nodeIndex=indexes[++j];}}
+{var baseIds=baseAggregate.ids;var baseIndexes=baseAggregate.indexes;var baseSelfSizes=baseAggregate.selfSizes;var indexes=aggregate?aggregate.idxs:[];var i=0,l=baseIds.length;var j=0,m=indexes.length;var diff=new WebInspector.HeapSnapshotCommon.Diff();var nodeB=this.createNode(indexes[j]);while(i<l&&j<m){var nodeAId=baseIds[i];if(nodeAId<nodeB.id()){diff.deletedIndexes.push(baseIndexes[i]);diff.removedCount++;diff.removedSize+=baseSelfSizes[i];++i;}else if(nodeAId>nodeB.id()){diff.addedIndexes.push(indexes[j]);diff.addedCount++;diff.addedSize+=nodeB.selfSize();nodeB.nodeIndex=indexes[++j];}else{++i;nodeB.nodeIndex=indexes[++j];}}
 while(i<l){diff.deletedIndexes.push(baseIndexes[i]);diff.removedCount++;diff.removedSize+=baseSelfSizes[i];++i;}
 while(j<m){diff.addedIndexes.push(indexes[j]);diff.addedCount++;diff.addedSize+=nodeB.selfSize();nodeB.nodeIndex=indexes[++j];}
 diff.countDelta=diff.addedCount-diff.removedCount;diff.sizeDelta=diff.addedSize-diff.removedSize;if(!diff.addedCount&&!diff.removedCount)
 return null;return diff;},_nodeForSnapshotObjectId:function(snapshotObjectId)
 {for(var it=this._allNodes();it.hasNext();it.next()){if(it.node.id()===snapshotObjectId)
 return it.node;}
 return null;},nodeClassName:function(snapshotObjectId)
 {var node=this._nodeForSnapshotObjectId(snapshotObjectId);if(node)
 return node.className();return null;},idsOfObjectsWithName:function(name)
 {var ids=[];for(var it=this._allNodes();it.hasNext();it.next()){if(it.item().name()===name)
 ids.push(it.item().id());}
 return ids;},dominatorIdsForNode:function(snapshotObjectId)
 {var node=this._nodeForSnapshotObjectId(snapshotObjectId);if(!node)
 return null;var result=[];while(!node.isRoot()){result.push(node.id());node.nodeIndex=node.dominatorIndex();}
-return result;},_parseFilter:function(filter)
-{if(!filter)
-return null;var parsedFilter=eval("(function(){return "+filter+"})()");return parsedFilter.bind(this);},createEdgesProvider:function(nodeIndex,showHiddenData)
-{var node=this.createNode(nodeIndex);var filter=this.containmentEdgesFilter(showHiddenData);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.edges());},createEdgesProviderForTest:function(nodeIndex,filter)
-{var node=this.createNode(nodeIndex);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.edges());},retainingEdgesFilter:function(showHiddenData)
-{return null;},containmentEdgesFilter:function(showHiddenData)
-{return null;},createRetainingEdgesProvider:function(nodeIndex,showHiddenData)
-{var node=this.createNode(nodeIndex);var filter=this.retainingEdgesFilter(showHiddenData);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.retainers());},createAddedNodesProvider:function(baseSnapshotId,className)
+return result;},createEdgesProvider:function(nodeIndex)
+{var node=this.createNode(nodeIndex);var filter=this.containmentEdgesFilter();var indexProvider=new WebInspector.HeapSnapshotEdgeIndexProvider(this);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.edges(),indexProvider);},createEdgesProviderForTest:function(nodeIndex,filter)
+{var node=this.createNode(nodeIndex);var indexProvider=new WebInspector.HeapSnapshotEdgeIndexProvider(this);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.edges(),indexProvider);},retainingEdgesFilter:function()
+{return null;},containmentEdgesFilter:function()
+{return null;},createRetainingEdgesProvider:function(nodeIndex)
+{var node=this.createNode(nodeIndex);var filter=this.retainingEdgesFilter();var indexProvider=new WebInspector.HeapSnapshotRetainerEdgeIndexProvider(this);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.retainers(),indexProvider);},createAddedNodesProvider:function(baseSnapshotId,className)
 {var snapshotDiff=this._snapshotDiffs[baseSnapshotId];var diffForClass=snapshotDiff[className];return new WebInspector.HeapSnapshotNodesProvider(this,null,diffForClass.addedIndexes);},createDeletedNodesProvider:function(nodeIndexes)
 {return new WebInspector.HeapSnapshotNodesProvider(this,null,nodeIndexes);},classNodesFilter:function()
-{return null;},createNodesProviderForClass:function(className,aggregatesKey)
-{return new WebInspector.HeapSnapshotNodesProvider(this,this.classNodesFilter(),this.aggregates(false,aggregatesKey)[className].idxs);},createNodesProviderForDominator:function(nodeIndex)
-{var node=this.createNode(nodeIndex);return new WebInspector.HeapSnapshotNodesProvider(this,null,this._dominatedNodesOfNode(node));},updateStaticData:function()
-{return{nodeCount:this.nodeCount,rootNodeIndex:this._rootNodeIndex,totalSize:this.totalSize,uid:this.uid};}};WebInspector.HeapSnapshotFilteredOrderedIterator=function(iterator,filter,unfilteredIterationOrder)
-{this._filter=filter;this._iterator=iterator;this._unfilteredIterationOrder=unfilteredIterationOrder;this._iterationOrder=null;this._position=0;this._currentComparator=null;this._sortedPrefixLength=0;this._sortedSuffixLength=0;}
-WebInspector.HeapSnapshotFilteredOrderedIterator.prototype={_createIterationOrder:function()
+{return null;},createNodesProviderForClass:function(className,nodeFilter)
+{return new WebInspector.HeapSnapshotNodesProvider(this,this.classNodesFilter(),this.aggregatesWithFilter(nodeFilter)[className].idxs);},createNodesProviderForDominator:function(nodeIndex)
+{var node=this.createNode(nodeIndex);return new WebInspector.HeapSnapshotNodesProvider(this,null,this._dominatedNodesOfNode(node));},_maxJsNodeId:function()
+{var nodeFieldCount=this._nodeFieldCount;var nodes=this._nodes;var nodesLength=nodes.length;var id=0;for(var nodeIndex=this._nodeIdOffset;nodeIndex<nodesLength;nodeIndex+=nodeFieldCount){var nextId=nodes[nodeIndex];if(nextId%2===0)
+continue;if(id<nextId)
+id=nextId;}
+return id;},updateStaticData:function()
+{return new WebInspector.HeapSnapshotCommon.StaticData(this.nodeCount,this._rootNodeIndex,this.totalSize,this._maxJsNodeId());}};WebInspector.HeapSnapshotItemProvider=function(iterator,indexProvider)
+{this._iterator=iterator;this._indexProvider=indexProvider;this._isEmpty=!iterator.hasNext();this._iterationOrder=null;this._currentComparator=null;this._sortedPrefixLength=0;this._sortedSuffixLength=0;}
+WebInspector.HeapSnapshotItemProvider.prototype={_createIterationOrder:function()
 {if(this._iterationOrder)
-return;if(this._unfilteredIterationOrder&&!this._filter){this._iterationOrder=this._unfilteredIterationOrder.slice(0);this._unfilteredIterationOrder=null;return;}
-this._iterationOrder=[];var iterator=this._iterator;if(!this._unfilteredIterationOrder&&!this._filter){for(iterator.rewind();iterator.hasNext();iterator.next())
-this._iterationOrder.push(iterator.index());}else if(!this._unfilteredIterationOrder){for(iterator.rewind();iterator.hasNext();iterator.next()){if(this._filter(iterator.item()))
-this._iterationOrder.push(iterator.index());}}else{var order=this._unfilteredIterationOrder.constructor===Array?this._unfilteredIterationOrder:this._unfilteredIterationOrder.slice(0);for(var i=0,l=order.length;i<l;++i){iterator.setIndex(order[i]);if(this._filter(iterator.item()))
-this._iterationOrder.push(iterator.index());}
-this._unfilteredIterationOrder=null;}},rewind:function()
-{this._position=0;},hasNext:function()
-{return this._position<this._iterationOrder.length;},isEmpty:function()
-{if(this._iterationOrder)
-return!this._iterationOrder.length;if(this._unfilteredIterationOrder&&!this._filter)
-return!this._unfilteredIterationOrder.length;var iterator=this._iterator;if(!this._unfilteredIterationOrder&&!this._filter){iterator.rewind();return!iterator.hasNext();}else if(!this._unfilteredIterationOrder){for(iterator.rewind();iterator.hasNext();iterator.next())
-if(this._filter(iterator.item()))
-return false;}else{var order=this._unfilteredIterationOrder.constructor===Array?this._unfilteredIterationOrder:this._unfilteredIterationOrder.slice(0);for(var i=0,l=order.length;i<l;++i){iterator.setIndex(order[i]);if(this._filter(iterator.item()))
-return false;}}
-return true;},item:function()
-{this._iterator.setIndex(this._iterationOrder[this._position]);return this._iterator.item();},get length()
-{this._createIterationOrder();return this._iterationOrder.length;},next:function()
-{++this._position;},serializeItemsRange:function(begin,end)
+return;this._iterationOrder=[];for(var iterator=this._iterator;iterator.hasNext();iterator.next())
+this._iterationOrder.push(iterator.item().itemIndex());},isEmpty:function()
+{return this._isEmpty;},serializeItemsRange:function(begin,end)
 {this._createIterationOrder();if(begin>end)
 throw new Error("Start position > end position: "+begin+" > "+end);if(end>this._iterationOrder.length)
 end=this._iterationOrder.length;if(this._sortedPrefixLength<end&&begin<this._iterationOrder.length-this._sortedSuffixLength){this.sort(this._currentComparator,this._sortedPrefixLength,this._iterationOrder.length-1-this._sortedSuffixLength,begin,end-1);if(begin<=this._sortedPrefixLength)
 this._sortedPrefixLength=end;if(end>=this._iterationOrder.length-this._sortedSuffixLength)
 this._sortedSuffixLength=this._iterationOrder.length-begin;}
-this._position=begin;var startPosition=this._position;var count=end-begin;var result=new Array(count);for(var i=0;i<count&&this.hasNext();++i,this.next())
-result[i]=this.item().serialize();result.length=i;result.totalLength=this._iterationOrder.length;result.startPosition=startPosition;result.endPosition=this._position;return result;},sortAll:function()
-{this._createIterationOrder();if(this._sortedPrefixLength+this._sortedSuffixLength>=this._iterationOrder.length)
-return;this.sort(this._currentComparator,this._sortedPrefixLength,this._iterationOrder.length-1-this._sortedSuffixLength,this._sortedPrefixLength,this._iterationOrder.length-1-this._sortedSuffixLength);this._sortedPrefixLength=this._iterationOrder.length;this._sortedSuffixLength=0;},sortAndRewind:function(comparator)
-{this._currentComparator=comparator;this._sortedPrefixLength=0;this._sortedSuffixLength=0;this.rewind();}}
-WebInspector.HeapSnapshotEdgesProvider=function(snapshot,filter,edgesIter)
-{this.snapshot=snapshot;WebInspector.HeapSnapshotFilteredOrderedIterator.call(this,edgesIter,filter);}
+var position=begin;var count=end-begin;var result=new Array(count);var iterator=this._iterator;for(var i=0;i<count;++i){var itemIndex=this._iterationOrder[position++];var item=this._indexProvider.itemForIndex(itemIndex);result[i]=item.serialize();}
+return new WebInspector.HeapSnapshotCommon.ItemsRange(begin,end,this._iterationOrder.length,result);},sortAndRewind:function(comparator)
+{this._currentComparator=comparator;this._sortedPrefixLength=0;this._sortedSuffixLength=0;}}
+WebInspector.HeapSnapshotEdgesProvider=function(snapshot,filter,edgesIter,indexProvider)
+{this.snapshot=snapshot;if(filter)
+edgesIter=new WebInspector.HeapSnapshotFilteredIterator(edgesIter,filter);WebInspector.HeapSnapshotItemProvider.call(this,edgesIter,indexProvider);}
 WebInspector.HeapSnapshotEdgesProvider.prototype={sort:function(comparator,leftBound,rightBound,windowLeft,windowRight)
 {var fieldName1=comparator.fieldName1;var fieldName2=comparator.fieldName2;var ascending1=comparator.ascending1;var ascending2=comparator.ascending2;var edgeA=this._iterator.item().clone();var edgeB=edgeA.clone();var nodeA=this.snapshot.createNode();var nodeB=this.snapshot.createNode();function compareEdgeFieldName(ascending,indexA,indexB)
 {edgeA.edgeIndex=indexA;edgeB.edgeIndex=indexB;if(edgeB.name()==="__proto__")return-1;if(edgeA.name()==="__proto__")return 1;var result=edgeA.hasStringName()===edgeB.hasStringName()?(edgeA.name()<edgeB.name()?-1:(edgeA.name()>edgeB.name()?1:0)):(edgeA.hasStringName()?-1:1);return ascending?result:-result;}
 function compareNodeField(fieldName,ascending,indexA,indexB)
 {edgeA.edgeIndex=indexA;nodeA.nodeIndex=edgeA.nodeIndex();var valueA=nodeA[fieldName]();edgeB.edgeIndex=indexB;nodeB.nodeIndex=edgeB.nodeIndex();var valueB=nodeB[fieldName]();var result=valueA<valueB?-1:(valueA>valueB?1:0);return ascending?result:-result;}
 function compareEdgeAndNode(indexA,indexB){var result=compareEdgeFieldName(ascending1,indexA,indexB);if(result===0)
 result=compareNodeField(fieldName2,ascending2,indexA,indexB);if(result===0)
 return indexA-indexB;return result;}
 function compareNodeAndEdge(indexA,indexB){var result=compareNodeField(fieldName1,ascending1,indexA,indexB);if(result===0)
 result=compareEdgeFieldName(ascending2,indexA,indexB);if(result===0)
 return indexA-indexB;return result;}
 function compareNodeAndNode(indexA,indexB){var result=compareNodeField(fieldName1,ascending1,indexA,indexB);if(result===0)
 result=compareNodeField(fieldName2,ascending2,indexA,indexB);if(result===0)
 return indexA-indexB;return result;}
 if(fieldName1==="!edgeName")
 this._iterationOrder.sortRange(compareEdgeAndNode,leftBound,rightBound,windowLeft,windowRight);else if(fieldName2==="!edgeName")
 this._iterationOrder.sortRange(compareNodeAndEdge,leftBound,rightBound,windowLeft,windowRight);else
-this._iterationOrder.sortRange(compareNodeAndNode,leftBound,rightBound,windowLeft,windowRight);},__proto__:WebInspector.HeapSnapshotFilteredOrderedIterator.prototype}
+this._iterationOrder.sortRange(compareNodeAndNode,leftBound,rightBound,windowLeft,windowRight);},__proto__:WebInspector.HeapSnapshotItemProvider.prototype}
 WebInspector.HeapSnapshotNodesProvider=function(snapshot,filter,nodeIndexes)
-{this.snapshot=snapshot;WebInspector.HeapSnapshotFilteredOrderedIterator.call(this,snapshot._allNodes(),filter,nodeIndexes);}
+{this.snapshot=snapshot;var indexProvider=new WebInspector.HeapSnapshotNodeIndexProvider(snapshot);var it=new WebInspector.HeapSnapshotIndexRangeIterator(indexProvider,nodeIndexes);if(filter)
+it=new WebInspector.HeapSnapshotFilteredIterator(it,filter);WebInspector.HeapSnapshotItemProvider.call(this,it,indexProvider);}
 WebInspector.HeapSnapshotNodesProvider.prototype={nodePosition:function(snapshotObjectId)
-{this._createIterationOrder();if(this.isEmpty())
-return-1;this.sortAll();var node=this.snapshot.createNode();for(var i=0;i<this._iterationOrder.length;i++){node.nodeIndex=this._iterationOrder[i];if(node.id()===snapshotObjectId)
-return i;}
-return-1;},sort:function(comparator,leftBound,rightBound,windowLeft,windowRight)
-{var fieldName1=comparator.fieldName1;var fieldName2=comparator.fieldName2;var ascending1=comparator.ascending1;var ascending2=comparator.ascending2;var nodeA=this.snapshot.createNode();var nodeB=this.snapshot.createNode();function sortByNodeField(fieldName,ascending)
-{var valueOrFunctionA=nodeA[fieldName];var valueA=typeof valueOrFunctionA!=="function"?valueOrFunctionA:valueOrFunctionA.call(nodeA);var valueOrFunctionB=nodeB[fieldName];var valueB=typeof valueOrFunctionB!=="function"?valueOrFunctionB:valueOrFunctionB.call(nodeB);var result=valueA<valueB?-1:(valueA>valueB?1:0);return ascending?result:-result;}
-function sortByComparator(indexA,indexB){nodeA.nodeIndex=indexA;nodeB.nodeIndex=indexB;var result=sortByNodeField(fieldName1,ascending1);if(result===0)
-result=sortByNodeField(fieldName2,ascending2);if(result===0)
-return indexA-indexB;return result;}
-this._iterationOrder.sortRange(sortByComparator,leftBound,rightBound,windowLeft,windowRight);},__proto__:WebInspector.HeapSnapshotFilteredOrderedIterator.prototype};WebInspector.HeapSnapshotProgressEvent={Update:"ProgressUpdate"};WebInspector.HeapSnapshotCommon={}
-WebInspector.HeapSnapshotCommon.AllocationNodeCallers=function()
-{this.nodesWithSingleCaller;this.branchingCallers;}
+{this._createIterationOrder();var node=this.snapshot.createNode();for(var i=0;i<this._iterationOrder.length;i++){node.nodeIndex=this._iterationOrder[i];if(node.id()===snapshotObjectId)
+break;}
+if(i===this._iterationOrder.length)
+return-1;var targetNodeIndex=this._iterationOrder[i];var smallerCount=0;var compare=this._buildCompareFunction(this._currentComparator);for(var i=0;i<this._iterationOrder.length;i++){if(compare(this._iterationOrder[i],targetNodeIndex)<0)
+++smallerCount;}
+return smallerCount;},_buildCompareFunction:function(comparator)
+{var nodeA=this.snapshot.createNode();var nodeB=this.snapshot.createNode();var fieldAccessor1=nodeA[comparator.fieldName1];var fieldAccessor2=nodeA[comparator.fieldName2];var ascending1=comparator.ascending1?1:-1;var ascending2=comparator.ascending2?1:-1;function sortByNodeField(fieldAccessor,ascending)
+{var valueA=fieldAccessor.call(nodeA);var valueB=fieldAccessor.call(nodeB);return valueA<valueB?-ascending:(valueA>valueB?ascending:0);}
+function sortByComparator(indexA,indexB)
+{nodeA.nodeIndex=indexA;nodeB.nodeIndex=indexB;var result=sortByNodeField(fieldAccessor1,ascending1);if(result===0)
+result=sortByNodeField(fieldAccessor2,ascending2);return result||indexA-indexB;}
+return sortByComparator;},sort:function(comparator,leftBound,rightBound,windowLeft,windowRight)
+{this._iterationOrder.sortRange(this._buildCompareFunction(comparator),leftBound,rightBound,windowLeft,windowRight);},__proto__:WebInspector.HeapSnapshotItemProvider.prototype};WebInspector.HeapSnapshotProgressEvent={Update:"ProgressUpdate"};WebInspector.HeapSnapshotCommon={}
+WebInspector.HeapSnapshotCommon.AllocationNodeCallers=function(nodesWithSingleCaller,branchingCallers)
+{this.nodesWithSingleCaller=nodesWithSingleCaller;this.branchingCallers=branchingCallers;}
+WebInspector.HeapSnapshotCommon.SerializedAllocationNode=function(nodeId,functionName,scriptName,line,column,count,size,liveCount,liveSize,hasChildren)
+{this.id=nodeId;this.name=functionName;this.scriptName=scriptName;this.line=line;this.column=column;this.count=count;this.size=size;this.liveCount=liveCount;this.liveSize=liveSize;this.hasChildren=hasChildren;}
 WebInspector.HeapSnapshotCommon.Aggregate=function()
 {this.count;this.distance;this.self;this.maxRet;this.type;this.name;this.idxs;}
+WebInspector.HeapSnapshotCommon.AggregateForDiff=function(){this.indexes=[];this.ids=[];this.selfSizes=[];}
+WebInspector.HeapSnapshotCommon.Diff=function()
+{this.addedCount=0;this.removedCount=0;this.addedSize=0;this.removedSize=0;this.deletedIndexes=[];this.addedIndexes=[];}
 WebInspector.HeapSnapshotCommon.DiffForClass=function()
 {this.addedCount;this.removedCount;this.addedSize;this.removedSize;this.deletedIndexes;this.addedIndexes;this.countDelta;this.sizeDelta;}
 WebInspector.HeapSnapshotCommon.ComparatorConfig=function()
 {this.fieldName1;this.ascending1;this.fieldName2;this.ascending2;}
 WebInspector.HeapSnapshotCommon.WorkerCommand=function()
-{this.callId;this.disposition;this.objectId;this.newObjectId;this.methodName;this.methodArguments;this.source;};WebInspector.HeapSnapshotLoader=function(dispatcher)
+{this.callId;this.disposition;this.objectId;this.newObjectId;this.methodName;this.methodArguments;this.source;}
+WebInspector.HeapSnapshotCommon.ItemsRange=function(startPosition,endPosition,totalLength,items)
+{this.startPosition=startPosition;this.endPosition=endPosition;this.totalLength=totalLength;this.items=items;}
+WebInspector.HeapSnapshotCommon.StaticData=function(nodeCount,rootNodeIndex,totalSize,maxJSObjectId)
+{this.nodeCount=nodeCount;this.rootNodeIndex=rootNodeIndex;this.totalSize=totalSize;this.maxJSObjectId=maxJSObjectId;}
+WebInspector.HeapSnapshotCommon.Statistics=function()
+{this.total;this.v8heap;this.native;this.code;this.jsArrays;this.strings;}
+WebInspector.HeapSnapshotCommon.NodeFilter=function(minNodeId,maxNodeId)
+{this.minNodeId=minNodeId;this.maxNodeId=maxNodeId;this.allocationNodeId;}
+WebInspector.HeapSnapshotCommon.NodeFilter.prototype={equals:function(o)
+{return this.minNodeId===o.minNodeId&&this.maxNodeId===o.maxNodeId&&this.allocationNodeId===o.allocationNodeId;}};WebInspector.HeapSnapshotLoader=function(dispatcher)
 {this._reset();this._progress=new WebInspector.HeapSnapshotProgress(dispatcher);}
 WebInspector.HeapSnapshotLoader.prototype={dispose:function()
 {this._reset();},_reset:function()
 {this._json="";this._state="find-snapshot-info";this._snapshot={};},close:function()
 {if(this._json)
-this._parseStringsArray();},buildSnapshot:function(constructorName)
-{this._progress.updateStatus("Processing snapshot\u2026");var constructor=WebInspector[constructorName];var result=new constructor(this._snapshot,this._progress);this._reset();return result;},_parseUintArray:function()
+this._parseStringsArray();},buildSnapshot:function(showHiddenData)
+{this._progress.updateStatus("Processing snapshot\u2026");var result=new WebInspector.JSHeapSnapshot(this._snapshot,this._progress,showHiddenData);this._reset();return result;},_parseUintArray:function()
 {var index=0;var char0="0".charCodeAt(0),char9="9".charCodeAt(0),closingBracket="]".charCodeAt(0);var length=this._json.length;while(true){while(index<length){var code=this._json.charCodeAt(index);if(char0<=code&&code<=char9)
 break;else if(code===closingBracket){this._json=this._json.slice(index+1);return false;}
 ++index;}
 if(index===length){this._json="";return true;}
 var nextNumber=0;var startIndex=index;while(index<length){var code=this._json.charCodeAt(index);if(char0>code||code>char9)
 break;nextNumber*=10;nextNumber+=(code-char0);++index;}
 if(index===length){this._json=this._json.slice(startIndex);return true;}
 this._array[this._arrayIndex++]=nextNumber;}},_parseStringsArray:function()
 {this._progress.updateStatus("Parsing strings\u2026");var closingBracketIndex=this._json.lastIndexOf("]");if(closingBracketIndex===-1)
 throw new Error("Incomplete JSON");this._json=this._json.slice(0,closingBracketIndex+1);this._snapshot.strings=JSON.parse(this._json);},write:function(chunk)
 {this._json+=chunk;while(true){switch(this._state){case"find-snapshot-info":{var snapshotToken="\"snapshot\"";var snapshotTokenIndex=this._json.indexOf(snapshotToken);if(snapshotTokenIndex===-1)
 throw new Error("Snapshot token not found");this._json=this._json.slice(snapshotTokenIndex+snapshotToken.length+1);this._state="parse-snapshot-info";this._progress.updateStatus("Loading snapshot info\u2026");break;}
 case"parse-snapshot-info":{var closingBracketIndex=WebInspector.TextUtils.findBalancedCurlyBrackets(this._json);if(closingBracketIndex===-1)
 return;this._snapshot.snapshot=(JSON.parse(this._json.slice(0,closingBracketIndex)));this._json=this._json.slice(closingBracketIndex);this._state="find-nodes";break;}
 case"find-nodes":{var nodesToken="\"nodes\"";var nodesTokenIndex=this._json.indexOf(nodesToken);if(nodesTokenIndex===-1)
 return;var bracketIndex=this._json.indexOf("[",nodesTokenIndex);if(bracketIndex===-1)
 return;this._json=this._json.slice(bracketIndex+1);var node_fields_count=this._snapshot.snapshot.meta.node_fields.length;var nodes_length=this._snapshot.snapshot.node_count*node_fields_count;this._array=new Uint32Array(nodes_length);this._arrayIndex=0;this._state="parse-nodes";break;}
 case"parse-nodes":{var hasMoreData=this._parseUintArray();this._progress.updateProgress("Loading nodes\u2026 %d\%",this._arrayIndex,this._array.length);if(hasMoreData)
 return;this._snapshot.nodes=this._array;this._state="find-edges";this._array=null;break;}
 case"find-edges":{var edgesToken="\"edges\"";var edgesTokenIndex=this._json.indexOf(edgesToken);if(edgesTokenIndex===-1)
 return;var bracketIndex=this._json.indexOf("[",edgesTokenIndex);if(bracketIndex===-1)
 return;this._json=this._json.slice(bracketIndex+1);var edge_fields_count=this._snapshot.snapshot.meta.edge_fields.length;var edges_length=this._snapshot.snapshot.edge_count*edge_fields_count;this._array=new Uint32Array(edges_length);this._arrayIndex=0;this._state="parse-edges";break;}
 case"parse-edges":{var hasMoreData=this._parseUintArray();this._progress.updateProgress("Loading edges\u2026 %d\%",this._arrayIndex,this._array.length);if(hasMoreData)
-return;this._snapshot.edges=this._array;this._array=null;if(WebInspector.HeapSnapshot.enableAllocationProfiler)
+return;this._snapshot.edges=this._array;this._array=null;if(this._snapshot.snapshot.trace_function_count)
 this._state="find-trace-function-infos";else
 this._state="find-strings";break;}
 case"find-trace-function-infos":{var tracesToken="\"trace_function_infos\"";var tracesTokenIndex=this._json.indexOf(tracesToken);if(tracesTokenIndex===-1)
 return;var bracketIndex=this._json.indexOf("[",tracesTokenIndex);if(bracketIndex===-1)
 return;this._json=this._json.slice(bracketIndex+1);var trace_function_info_field_count=this._snapshot.snapshot.meta.trace_function_info_fields.length;var trace_function_info_length=this._snapshot.snapshot.trace_function_count*trace_function_info_field_count;this._array=new Uint32Array(trace_function_info_length);this._arrayIndex=0;this._state="parse-trace-function-infos";break;}
 case"parse-trace-function-infos":{if(this._parseUintArray())
 return;this._snapshot.trace_function_infos=this._array;this._array=null;this._state="find-trace-tree";break;}
 case"find-trace-tree":{var tracesToken="\"trace_tree\"";var tracesTokenIndex=this._json.indexOf(tracesToken);if(tracesTokenIndex===-1)
 return;var bracketIndex=this._json.indexOf("[",tracesTokenIndex);if(bracketIndex===-1)
 return;this._json=this._json.slice(bracketIndex);this._state="parse-trace-tree";break;}
 case"parse-trace-tree":{var stringsToken="\"strings\"";var stringsTokenIndex=this._json.indexOf(stringsToken);if(stringsTokenIndex===-1)
 return;var bracketIndex=this._json.lastIndexOf("]",stringsTokenIndex);this._snapshot.trace_tree=JSON.parse(this._json.substring(0,bracketIndex+1));this._json=this._json.slice(bracketIndex);this._state="find-strings";this._progress.updateStatus("Loading strings\u2026");break;}
 case"find-strings":{var stringsToken="\"strings\"";var stringsTokenIndex=this._json.indexOf(stringsToken);if(stringsTokenIndex===-1)
 return;var bracketIndex=this._json.indexOf("[",stringsTokenIndex);if(bracketIndex===-1)
 return;this._json=this._json.slice(bracketIndex);this._state="accumulate-strings";break;}
 case"accumulate-strings":return;}}}};;WebInspector.HeapSnapshotWorkerDispatcher=function(globalObject,postMessage)
 {this._objects=[];this._global=globalObject;this._postMessage=postMessage;}
 WebInspector.HeapSnapshotWorkerDispatcher.prototype={_findFunction:function(name)
 {var path=name.split(".");var result=this._global;for(var i=0;i<path.length;++i)
 result=result[path[i]];return result;},sendEvent:function(name,data)
 {this._postMessage({eventName:name,data:data});},dispatchMessage:function(event)
 {var data=(event.data);var response={callId:data.callId};try{switch(data.disposition){case"create":{var constructorFunction=this._findFunction(data.methodName);this._objects[data.objectId]=new constructorFunction(this);break;}
 case"dispose":{delete this._objects[data.objectId];break;}
 case"getter":{var object=this._objects[data.objectId];var result=object[data.methodName];response.result=result;break;}
 case"factory":{var object=this._objects[data.objectId];var result=object[data.methodName].apply(object,data.methodArguments);if(result)
 this._objects[data.newObjectId]=result;response.result=!!result;break;}
 case"method":{var object=this._objects[data.objectId];response.result=object[data.methodName].apply(object,data.methodArguments);break;}
 case"evaluateForTest":{try{response.result=eval(data.source)}catch(e){response.result=e.toString();}
-break;}
-case"enableAllocationProfiler":{WebInspector.HeapSnapshot.enableAllocationProfiler=true;return;}}}catch(e){response.error=e.toString();response.errorCallStack=e.stack;if(data.methodName)
+break;}}}catch(e){response.error=e.toString();response.errorCallStack=e.stack;if(data.methodName)
 response.errorMethodName=data.methodName;}
-this._postMessage(response);}};;WebInspector.JSHeapSnapshot=function(profile,progress)
-{this._nodeFlags={canBeQueried:1,detachedDOMTreeNode:2,pageObject:4,visitedMarkerMask:0x0ffff,visitedMarker:0x10000};this._lazyStringCache={};WebInspector.HeapSnapshot.call(this,profile,progress);}
-WebInspector.JSHeapSnapshot.prototype={maxJsNodeId:function()
-{var nodeFieldCount=this._nodeFieldCount;var nodes=this._nodes;var nodesLength=nodes.length;var id=0;for(var nodeIndex=this._nodeIdOffset;nodeIndex<nodesLength;nodeIndex+=nodeFieldCount){var nextId=nodes[nodeIndex];if(nextId%2===0)
-continue;if(id<nodes[nodeIndex])
-id=nodes[nodeIndex];}
-return id;},createNode:function(nodeIndex)
-{return new WebInspector.JSHeapSnapshotNode(this,nodeIndex);},createEdge:function(edges,edgeIndex)
-{return new WebInspector.JSHeapSnapshotEdge(this,edges,edgeIndex);},createRetainingEdge:function(retainedNodeIndex,retainerIndex)
-{return new WebInspector.JSHeapSnapshotRetainerEdge(this,retainedNodeIndex,retainerIndex);},classNodesFilter:function()
+this._postMessage(response);}};;WebInspector.JSHeapSnapshot=function(profile,progress,showHiddenData)
+{this._nodeFlags={canBeQueried:1,detachedDOMTreeNode:2,pageObject:4,visitedMarkerMask:0x0ffff,visitedMarker:0x10000};this._lazyStringCache={};WebInspector.HeapSnapshot.call(this,profile,progress,showHiddenData);}
+WebInspector.JSHeapSnapshot.prototype={createNode:function(nodeIndex)
+{return new WebInspector.JSHeapSnapshotNode(this,nodeIndex);},createEdge:function(edgeIndex)
+{return new WebInspector.JSHeapSnapshotEdge(this,edgeIndex);},createRetainingEdge:function(retainerIndex)
+{return new WebInspector.JSHeapSnapshotRetainerEdge(this,retainerIndex);},classNodesFilter:function()
 {function filter(node)
 {return node.isUserObject();}
-return filter;},containmentEdgesFilter:function(showHiddenData)
-{function filter(edge){if(edge.isInvisible())
+return this._showHiddenData?null:filter;},containmentEdgesFilter:function()
+{var showHiddenData=this._showHiddenData;function filter(edge){if(edge.isInvisible())
 return false;if(showHiddenData)
 return true;return!edge.isHidden()&&!edge.node().isHidden();}
-return filter;},retainingEdgesFilter:function(showHiddenData)
-{var containmentEdgesFilter=this.containmentEdgesFilter(showHiddenData);function filter(edge)
+return filter;},retainingEdgesFilter:function()
+{var containmentEdgesFilter=this.containmentEdgesFilter();function filter(edge)
 {return containmentEdgesFilter(edge)&&!edge.node().isRoot()&&!edge.isWeak();}
 return filter;},dispose:function()
-{WebInspector.HeapSnapshot.prototype.dispose.call(this);delete this._flags;},_markInvisibleEdges:function()
-{for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var edge=iter.edge;if(!edge.isShortcut())
-continue;var node=edge.node();var propNames={};for(var innerIter=node.edges();innerIter.hasNext();innerIter.next()){var globalObjEdge=innerIter.edge;if(globalObjEdge.isShortcut())
-propNames[globalObjEdge._nameOrIndex()]=true;}
-for(innerIter.rewind();innerIter.hasNext();innerIter.next()){var globalObjEdge=innerIter.edge;if(!globalObjEdge.isShortcut()&&globalObjEdge.node().isHidden()&&globalObjEdge._hasStringName()&&(globalObjEdge._nameOrIndex()in propNames))
-this._containmentEdges[globalObjEdge._edges._start+globalObjEdge.edgeIndex+this._edgeTypeOffset]=this._edgeInvisibleType;}}},_calculateFlags:function()
+{WebInspector.HeapSnapshot.prototype.dispose.call(this);delete this._flags;},_calculateFlags:function()
 {this._flags=new Uint32Array(this.nodeCount);this._markDetachedDOMTreeNodes();this._markQueriableHeapObjects();this._markPageOwnedNodes();},_isUserRoot:function(node)
 {return node.isUserRoot()||node.isDocumentDOMTreesRoot();},forEachRoot:function(action,userRootsOnly)
 {function getChildNodeByName(node,name)
 {for(var iter=node.edges();iter.hasNext();iter.next()){var child=iter.edge.node();if(child.name()===name)
 return child;}
 return null;}
-function getChildNodeByLinkName(node,name)
-{for(var iter=node.edges();iter.hasNext();iter.next()){var edge=iter.edge;if(edge.name()===name)
-return edge.node();}
-return null;}
 var visitedNodes={};function doAction(node)
 {var ordinal=node._ordinal();if(!visitedNodes[ordinal]){action(node);visitedNodes[ordinal]=true;}}
 var gcRoots=getChildNodeByName(this.rootNode(),"(GC roots)");if(!gcRoots)
-return;if(userRootsOnly){for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(node.isDocumentDOMTreesRoot())
-doAction(node);else if(node.isUserRoot()){var nativeContextNode=getChildNodeByLinkName(node,"native_context");if(nativeContextNode)
-doAction(nativeContextNode);else
-doAction(node);}}}else{for(var iter=gcRoots.edges();iter.hasNext();iter.next()){var subRoot=iter.edge.node();for(var iter2=subRoot.edges();iter2.hasNext();iter2.next())
+return;if(userRootsOnly){for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(this._isUserRoot(node))
+doAction(node);}}else{for(var iter=gcRoots.edges();iter.hasNext();iter.next()){var subRoot=iter.edge.node();for(var iter2=subRoot.edges();iter2.hasNext();iter2.next())
 doAction(iter2.edge.node());doAction(subRoot);}
 for(var iter=this.rootNode().edges();iter.hasNext();iter.next())
 doAction(iter.edge.node())}},userObjectsMapAndFlag:function()
-{return{map:this._flags,flag:this._nodeFlags.pageObject};},_flagsOfNode:function(node)
+{return this._showHiddenData?null:{map:this._flags,flag:this._nodeFlags.pageObject};},_flagsOfNode:function(node)
 {return this._flags[node.nodeIndex/this._nodeFieldCount];},_markDetachedDOMTreeNodes:function()
 {var flag=this._nodeFlags.detachedDOMTreeNode;var detachedDOMTreesRoot;for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(node.name()==="(Detached DOM trees)"){detachedDOMTreesRoot=node;break;}}
 if(!detachedDOMTreesRoot)
 return;var detachedDOMTreeRE=/^Detached DOM tree/;for(var iter=detachedDOMTreesRoot.edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(detachedDOMTreeRE.test(node.className())){for(var edgesIter=node.edges();edgesIter.hasNext();edgesIter.next())
 this._flags[edgesIter.edge.node().nodeIndex/this._nodeFieldCount]|=flag;}}},_markQueriableHeapObjects:function()
 {var flag=this._nodeFlags.canBeQueried;var hiddenEdgeType=this._edgeHiddenType;var internalEdgeType=this._edgeInternalType;var invisibleEdgeType=this._edgeInvisibleType;var weakEdgeType=this._edgeWeakType;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeTypeOffset=this._edgeTypeOffset;var edgeFieldsCount=this._edgeFieldsCount;var containmentEdges=this._containmentEdges;var nodes=this._nodes;var nodeCount=this.nodeCount;var nodeFieldCount=this._nodeFieldCount;var firstEdgeIndexes=this._firstEdgeIndexes;var flags=this._flags;var list=[];for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){if(iter.edge.node().isUserRoot())
 list.push(iter.edge.node().nodeIndex/nodeFieldCount);}
 while(list.length){var nodeOrdinal=list.pop();if(flags[nodeOrdinal]&flag)
 continue;flags[nodeOrdinal]|=flag;var beginEdgeIndex=firstEdgeIndexes[nodeOrdinal];var endEdgeIndex=firstEdgeIndexes[nodeOrdinal+1];for(var edgeIndex=beginEdgeIndex;edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){var childNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];var childNodeOrdinal=childNodeIndex/nodeFieldCount;if(flags[childNodeOrdinal]&flag)
 continue;var type=containmentEdges[edgeIndex+edgeTypeOffset];if(type===hiddenEdgeType||type===invisibleEdgeType||type===internalEdgeType||type===weakEdgeType)
 continue;list.push(childNodeOrdinal);}}},_markPageOwnedNodes:function()
 {var edgeShortcutType=this._edgeShortcutType;var edgeElementType=this._edgeElementType;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeTypeOffset=this._edgeTypeOffset;var edgeFieldsCount=this._edgeFieldsCount;var edgeWeakType=this._edgeWeakType;var firstEdgeIndexes=this._firstEdgeIndexes;var containmentEdges=this._containmentEdges;var containmentEdgesLength=containmentEdges.length;var nodes=this._nodes;var nodeFieldCount=this._nodeFieldCount;var nodesCount=this.nodeCount;var flags=this._flags;var flag=this._nodeFlags.pageObject;var visitedMarker=this._nodeFlags.visitedMarker;var visitedMarkerMask=this._nodeFlags.visitedMarkerMask;var markerAndFlag=visitedMarker|flag;var nodesToVisit=new Uint32Array(nodesCount);var nodesToVisitLength=0;var rootNodeOrdinal=this._rootNodeIndex/nodeFieldCount;var node=this.rootNode();for(var edgeIndex=firstEdgeIndexes[rootNodeOrdinal],endEdgeIndex=firstEdgeIndexes[rootNodeOrdinal+1];edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){var edgeType=containmentEdges[edgeIndex+edgeTypeOffset];var nodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];if(edgeType===edgeElementType){node.nodeIndex=nodeIndex;if(!node.isDocumentDOMTreesRoot())
 continue;}else if(edgeType!==edgeShortcutType)
 continue;var nodeOrdinal=nodeIndex/nodeFieldCount;nodesToVisit[nodesToVisitLength++]=nodeOrdinal;flags[nodeOrdinal]|=visitedMarker;}
 while(nodesToVisitLength){var nodeOrdinal=nodesToVisit[--nodesToVisitLength];flags[nodeOrdinal]|=flag;flags[nodeOrdinal]&=visitedMarkerMask;var beginEdgeIndex=firstEdgeIndexes[nodeOrdinal];var endEdgeIndex=firstEdgeIndexes[nodeOrdinal+1];for(var edgeIndex=beginEdgeIndex;edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){var childNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];var childNodeOrdinal=childNodeIndex/nodeFieldCount;if(flags[childNodeOrdinal]&markerAndFlag)
 continue;var type=containmentEdges[edgeIndex+edgeTypeOffset];if(type===edgeWeakType)
-continue;nodesToVisit[nodesToVisitLength++]=childNodeOrdinal;flags[childNodeOrdinal]|=visitedMarker;}}},__proto__:WebInspector.HeapSnapshot.prototype};WebInspector.JSHeapSnapshotNode=function(snapshot,nodeIndex)
+continue;nodesToVisit[nodesToVisitLength++]=childNodeOrdinal;flags[childNodeOrdinal]|=visitedMarker;}}},_calculateStatistics:function()
+{var nodeFieldCount=this._nodeFieldCount;var nodes=this._nodes;var nodesLength=nodes.length;var nodeTypeOffset=this._nodeTypeOffset;var nodeSizeOffset=this._nodeSelfSizeOffset;;var nodeNativeType=this._nodeNativeType;var nodeCodeType=this._nodeCodeType;var nodeConsStringType=this._nodeConsStringType;var nodeSlicedStringType=this._nodeSlicedStringType;var sizeNative=0;var sizeCode=0;var sizeStrings=0;var sizeJSArrays=0;var node=this.rootNode();for(var nodeIndex=0;nodeIndex<nodesLength;nodeIndex+=nodeFieldCount){node.nodeIndex=nodeIndex;var nodeType=nodes[nodeIndex+nodeTypeOffset];var nodeSize=nodes[nodeIndex+nodeSizeOffset];if(nodeType===nodeNativeType)
+sizeNative+=nodeSize;else if(nodeType===nodeCodeType)
+sizeCode+=nodeSize;else if(nodeType===nodeConsStringType||nodeType===nodeSlicedStringType||node.type()==="string")
+sizeStrings+=nodeSize;else if(node.name()==="Array")
+sizeJSArrays+=this._calculateArraySize(node);}
+this._statistics=new WebInspector.HeapSnapshotCommon.Statistics();this._statistics.total=this.totalSize;this._statistics.v8heap=this.totalSize-sizeNative;this._statistics.native=sizeNative;this._statistics.code=sizeCode;this._statistics.jsArrays=sizeJSArrays;this._statistics.strings=sizeStrings;},_calculateArraySize:function(node)
+{var size=node.selfSize();var beginEdgeIndex=node._edgeIndexesStart();var endEdgeIndex=node._edgeIndexesEnd();var containmentEdges=this._containmentEdges;var strings=this._strings;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeTypeOffset=this._edgeTypeOffset;var edgeNameOffset=this._edgeNameOffset;var edgeFieldsCount=this._edgeFieldsCount;var edgeInternalType=this._edgeInternalType;for(var edgeIndex=beginEdgeIndex;edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){var edgeType=containmentEdges[edgeIndex+edgeTypeOffset];if(edgeType!==edgeInternalType)
+continue;var edgeName=strings[containmentEdges[edgeIndex+edgeNameOffset]];if(edgeName!=="elements")
+continue;var elementsNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];node.nodeIndex=elementsNodeIndex;if(node.retainersCount()===1)
+size+=node.selfSize();break;}
+return size;},getStatistics:function()
+{return this._statistics;},__proto__:WebInspector.HeapSnapshot.prototype};WebInspector.JSHeapSnapshotNode=function(snapshot,nodeIndex)
 {WebInspector.HeapSnapshotNode.call(this,snapshot,nodeIndex)}
 WebInspector.JSHeapSnapshotNode.prototype={canBeQueried:function()
 {var flags=this._snapshot._flagsOfNode(this);return!!(flags&this._snapshot._nodeFlags.canBeQueried);},isUserObject:function()
 {var flags=this._snapshot._flagsOfNode(this);return!!(flags&this._snapshot._nodeFlags.pageObject);},name:function(){var snapshot=this._snapshot;if(this._type()===snapshot._nodeConsStringType){var string=snapshot._lazyStringCache[this.nodeIndex];if(typeof string==="undefined"){string=this._consStringName();snapshot._lazyStringCache[this.nodeIndex]=string;}
 return string;}
 return WebInspector.HeapSnapshotNode.prototype.name.call(this);},_consStringName:function()
 {var snapshot=this._snapshot;var consStringType=snapshot._nodeConsStringType;var edgeInternalType=snapshot._edgeInternalType;var edgeFieldsCount=snapshot._edgeFieldsCount;var edgeToNodeOffset=snapshot._edgeToNodeOffset;var edgeTypeOffset=snapshot._edgeTypeOffset;var edgeNameOffset=snapshot._edgeNameOffset;var strings=snapshot._strings;var edges=snapshot._containmentEdges;var firstEdgeIndexes=snapshot._firstEdgeIndexes;var nodeFieldCount=snapshot._nodeFieldCount;var nodeTypeOffset=snapshot._nodeTypeOffset;var nodeNameOffset=snapshot._nodeNameOffset;var nodes=snapshot._nodes;var nodesStack=[];nodesStack.push(this.nodeIndex);var name="";while(nodesStack.length&&name.length<1024){var nodeIndex=nodesStack.pop();if(nodes[nodeIndex+nodeTypeOffset]!==consStringType){name+=strings[nodes[nodeIndex+nodeNameOffset]];continue;}
 var nodeOrdinal=nodeIndex/nodeFieldCount;var beginEdgeIndex=firstEdgeIndexes[nodeOrdinal];var endEdgeIndex=firstEdgeIndexes[nodeOrdinal+1];var firstNodeIndex=0;var secondNodeIndex=0;for(var edgeIndex=beginEdgeIndex;edgeIndex<endEdgeIndex&&(!firstNodeIndex||!secondNodeIndex);edgeIndex+=edgeFieldsCount){var edgeType=edges[edgeIndex+edgeTypeOffset];if(edgeType===edgeInternalType){var edgeName=strings[edges[edgeIndex+edgeNameOffset]];if(edgeName==="first")
 firstNodeIndex=edges[edgeIndex+edgeToNodeOffset];else if(edgeName==="second")
 secondNodeIndex=edges[edgeIndex+edgeToNodeOffset];}}
 nodesStack.push(secondNodeIndex);nodesStack.push(firstNodeIndex);}
 return name;},className:function()
 {var type=this.type();switch(type){case"hidden":return"(system)";case"object":case"native":return this.name();case"code":return"(compiled code)";default:return"("+type+")";}},classIndex:function()
 {var snapshot=this._snapshot;var nodes=snapshot._nodes;var type=nodes[this.nodeIndex+snapshot._nodeTypeOffset];;if(type===snapshot._nodeObjectType||type===snapshot._nodeNativeType)
 return nodes[this.nodeIndex+snapshot._nodeNameOffset];return-1-type;},id:function()
 {var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeIdOffset];},isHidden:function()
 {return this._type()===this._snapshot._nodeHiddenType;},isSynthetic:function()
 {return this._type()===this._snapshot._nodeSyntheticType;},isUserRoot:function()
 {return!this.isSynthetic();},isDocumentDOMTreesRoot:function()
 {return this.isSynthetic()&&this.name()==="(Document DOM trees)";},serialize:function()
 {var result=WebInspector.HeapSnapshotNode.prototype.serialize.call(this);var flags=this._snapshot._flagsOfNode(this);if(flags&this._snapshot._nodeFlags.canBeQueried)
 result.canBeQueried=true;if(flags&this._snapshot._nodeFlags.detachedDOMTreeNode)
-result.detachedDOMTreeNode=true;return result;},__proto__:WebInspector.HeapSnapshotNode.prototype};WebInspector.JSHeapSnapshotEdge=function(snapshot,edges,edgeIndex)
-{WebInspector.HeapSnapshotEdge.call(this,snapshot,edges,edgeIndex);}
+result.detachedDOMTreeNode=true;return result;},__proto__:WebInspector.HeapSnapshotNode.prototype};WebInspector.JSHeapSnapshotEdge=function(snapshot,edgeIndex)
+{WebInspector.HeapSnapshotEdge.call(this,snapshot,edgeIndex);}
 WebInspector.JSHeapSnapshotEdge.prototype={clone:function()
-{return new WebInspector.JSHeapSnapshotEdge(this._snapshot,this._edges,this.edgeIndex);},hasStringName:function()
+{var snapshot=(this._snapshot);return new WebInspector.JSHeapSnapshotEdge(snapshot,this.edgeIndex);},hasStringName:function()
 {if(!this.isShortcut())
 return this._hasStringName();return isNaN(parseInt(this._name(),10));},isElement:function()
 {return this._type()===this._snapshot._edgeElementType;},isHidden:function()
 {return this._type()===this._snapshot._edgeHiddenType;},isWeak:function()
 {return this._type()===this._snapshot._edgeWeakType;},isInternal:function()
 {return this._type()===this._snapshot._edgeInternalType;},isInvisible:function()
 {return this._type()===this._snapshot._edgeInvisibleType;},isShortcut:function()
 {return this._type()===this._snapshot._edgeShortcutType;},name:function()
 {if(!this.isShortcut())
 return this._name();var numName=parseInt(this._name(),10);return isNaN(numName)?this._name():numName;},toString:function()
 {var name=this.name();switch(this.type()){case"context":return"->"+name;case"element":return"["+name+"]";case"weak":return"[["+name+"]]";case"property":return name.indexOf(" ")===-1?"."+name:"[\""+name+"\"]";case"shortcut":if(typeof name==="string")
 return name.indexOf(" ")===-1?"."+name:"[\""+name+"\"]";else
 return"["+name+"]";case"internal":case"hidden":case"invisible":return"{"+name+"}";};return"?"+name+"?";},_hasStringName:function()
-{return!this.isElement()&&!this.isHidden()&&!this.isWeak();},_name:function()
+{return!this.isElement()&&!this.isHidden();},_name:function()
 {return this._hasStringName()?this._snapshot._strings[this._nameOrIndex()]:this._nameOrIndex();},_nameOrIndex:function()
-{return this._edges.item(this.edgeIndex+this._snapshot._edgeNameOffset);},_type:function()
-{return this._edges.item(this.edgeIndex+this._snapshot._edgeTypeOffset);},__proto__:WebInspector.HeapSnapshotEdge.prototype};WebInspector.JSHeapSnapshotRetainerEdge=function(snapshot,retainedNodeIndex,retainerIndex)
-{WebInspector.HeapSnapshotRetainerEdge.call(this,snapshot,retainedNodeIndex,retainerIndex);}
+{return this._edges[this.edgeIndex+this._snapshot._edgeNameOffset];},_type:function()
+{return this._edges[this.edgeIndex+this._snapshot._edgeTypeOffset];},__proto__:WebInspector.HeapSnapshotEdge.prototype};WebInspector.JSHeapSnapshotRetainerEdge=function(snapshot,retainerIndex)
+{WebInspector.HeapSnapshotRetainerEdge.call(this,snapshot,retainerIndex);}
 WebInspector.JSHeapSnapshotRetainerEdge.prototype={clone:function()
-{return new WebInspector.JSHeapSnapshotRetainerEdge(this._snapshot,this._retainedNodeIndex,this.retainerIndex());},isHidden:function()
+{var snapshot=(this._snapshot);return new WebInspector.JSHeapSnapshotRetainerEdge(snapshot,this.retainerIndex());},isHidden:function()
 {return this._edge().isHidden();},isInternal:function()
 {return this._edge().isInternal();},isInvisible:function()
 {return this._edge().isInvisible();},isShortcut:function()
 {return this._edge().isShortcut();},isWeak:function()
 {return this._edge().isWeak();},__proto__:WebInspector.HeapSnapshotRetainerEdge.prototype};WebInspector.TextUtils={isStopChar:function(char)
 {return(char>" "&&char<"0")||(char>"9"&&char<"A")||(char>"Z"&&char<"_")||(char>"_"&&char<"a")||(char>"z"&&char<="~");},isWordChar:function(char)
 {return!WebInspector.TextUtils.isStopChar(char)&&!WebInspector.TextUtils.isSpaceChar(char);},isSpaceChar:function(char)
 {return WebInspector.TextUtils._SpaceCharRegex.test(char);},isWord:function(word)
 {for(var i=0;i<word.length;++i){if(!WebInspector.TextUtils.isWordChar(word.charAt(i)))
 return false;}
@@ skipping 18 matching lines @@
 return false;return true;}
 Object.values=function(obj)
 {var result=Object.keys(obj);var length=result.length;for(var i=0;i<length;++i)
 result[i]=obj[result[i]];return result;}
 String.prototype.findAll=function(string)
 {var matches=[];var i=this.indexOf(string);while(i!==-1){matches.push(i);i=this.indexOf(string,i+string.length);}
 return matches;}
 String.prototype.lineEndings=function()
 {if(!this._lineEndings){this._lineEndings=this.findAll("\n");this._lineEndings.push(this.length);}
 return this._lineEndings;}
+String.prototype.lineCount=function()
+{var lineEndings=this.lineEndings();return lineEndings.length;}
+String.prototype.lineAt=function(lineNumber)
+{var lineEndings=this.lineEndings();var lineStart=lineNumber>0?lineEndings[lineNumber-1]+1:0;var lineEnd=lineEndings[lineNumber];var lineContent=this.substring(lineStart,lineEnd);if(lineContent.length>0&&lineContent.charAt(lineContent.length-1)==="\r")
+lineContent=lineContent.substring(0,lineContent.length-1);return lineContent;}
 String.prototype.escapeCharacters=function(chars)
 {var foundChar=false;for(var i=0;i<chars.length;++i){if(this.indexOf(chars.charAt(i))!==-1){foundChar=true;break;}}
 if(!foundChar)
 return String(this);var result="";for(var i=0;i<this.length;++i){if(chars.indexOf(this.charAt(i))!==-1)
 result+="\\";result+=this.charAt(i);}
 return result;}
 String.regexSpecialCharacters=function()
-{return"^[]{}()\\.$*+?|-,";}
+{return"^[]{}()\\.^$*+?|-,";}
 String.prototype.escapeForRegExp=function()
 {return this.escapeCharacters(String.regexSpecialCharacters());}
 String.prototype.escapeHTML=function()
 {return this.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;");}
 String.prototype.collapseWhitespace=function()
 {return this.replace(/[\s\xA0]+/g," ");}
 String.prototype.trimMiddle=function(maxLength)
 {if(this.length<=maxLength)
 return String(this);var leftHalf=maxLength>>1;var rightHalf=maxLength-leftHalf-1;return this.substr(0,leftHalf)+"\u2026"+this.substr(this.length-rightHalf,rightHalf);}
 String.prototype.trimEnd=function(maxLength)
@@ skipping 45 matching lines @@
 return value;var number=Number(value);return number%1?number.toFixed(3):String(number);}
 Date.prototype.toISO8601Compact=function()
 {function leadZero(x)
 {return(x>9?"":"0")+x;}
 return this.getFullYear()+
 leadZero(this.getMonth()+1)+
 leadZero(this.getDate())+"T"+
 leadZero(this.getHours())+
 leadZero(this.getMinutes())+
 leadZero(this.getSeconds());}
-Object.defineProperty(Array.prototype,"remove",{value:function(value,onlyFirst)
-{if(onlyFirst){var index=this.indexOf(value);if(index!==-1)
-this.splice(index,1);return;}
-var length=this.length;for(var i=0;i<length;++i){if(this[i]===value)
-this.splice(i,1);}}});Object.defineProperty(Array.prototype,"keySet",{value:function()
+Date.prototype.toConsoleTime=function()
+{function leadZero2(x)
+{return(x>9?"":"0")+x;}
+function leadZero3(x)
+{return(Array(4-x.toString().length)).join('0')+x;}
+return this.getFullYear()+"-"+
+leadZero2(this.getMonth()+1)+"-"+
+leadZero2(this.getDate())+" "+
+leadZero2(this.getHours())+":"+
+leadZero2(this.getMinutes())+":"+
+leadZero2(this.getSeconds())+"."+
+leadZero3(this.getMilliseconds());}
+Object.defineProperty(Array.prototype,"remove",{value:function(value,firstOnly)
+{var index=this.indexOf(value);if(index===-1)
+return;if(firstOnly){this.splice(index,1);return;}
+for(var i=index+1,n=this.length;i<n;++i){if(this[i]!==value)
+this[index++]=this[i];}
+this.length=index;}});Object.defineProperty(Array.prototype,"keySet",{value:function()
 {var keys={};for(var i=0;i<this.length;++i)
 keys[this[i]]=true;return keys;}});Object.defineProperty(Array.prototype,"rotate",{value:function(index)
 {var result=[];for(var i=index;i<index+this.length;++i)
 result.push(this[i%this.length]);return result;}});Object.defineProperty(Uint32Array.prototype,"sort",{value:Array.prototype.sort});(function(){var partition={value:function(comparator,left,right,pivotIndex)
 {function swap(array,i1,i2)
 {var temp=array[i1];array[i1]=array[i2];array[i2]=temp;}
 var pivotValue=this[pivotIndex];swap(this,right,pivotIndex);var storeIndex=left;for(var i=left;i<right;++i){if(comparator(this[i],pivotValue)<0){swap(this,storeIndex,i);++storeIndex;}}
 swap(this,right,storeIndex);return storeIndex;}};Object.defineProperty(Array.prototype,"partition",partition);Object.defineProperty(Uint32Array.prototype,"partition",partition);var sortRange={value:function(comparator,leftBound,rightBound,sortWindowLeft,sortWindowRight)
 {function quickSortRange(array,comparator,left,right,sortWindowLeft,sortWindowRight)
 {if(right<=left)
@@ skipping 11 matching lines @@
 {var result=comparator(self[a],self[b]);return result?result:a-b;}
 indices.sort(indexComparator);for(var i=0;i<this.length;++i){if(indices[i]<0||i===indices[i])
 continue;var cyclical=i;var saved=this[i];while(true){var next=indices[cyclical];indices[cyclical]=-1;if(next===i){this[cyclical]=saved;break;}else{this[cyclical]=this[next];cyclical=next;}}}
 return this;}});Object.defineProperty(Array.prototype,"qselect",{value:function(k,comparator)
 {if(k<0||k>=this.length)
 return;if(!comparator)
 comparator=function(a,b){return a-b;}
 var low=0;var high=this.length-1;for(;;){var pivotPosition=this.partition(comparator,low,high,Math.floor((high+low)/2));if(pivotPosition===k)
 return this[k];else if(pivotPosition>k)
 high=pivotPosition-1;else
-low=pivotPosition+1;}}});Object.defineProperty(Array.prototype,"lowerBound",{value:function(object,comparator)
+low=pivotPosition+1;}}});Object.defineProperty(Array.prototype,"lowerBound",{value:function(object,comparator,left,right)
 {function defaultComparator(a,b)
 {return a<b?-1:(a>b?1:0);}
-comparator=comparator||defaultComparator;var l=0;var r=this.length;while(l<r){var m=(l+r)>>1;if(comparator(object,this[m])>0)
+comparator=comparator||defaultComparator;var l=left||0;var r=right!==undefined?right:this.length;while(l<r){var m=(l+r)>>1;if(comparator(object,this[m])>0)
 l=m+1;else
 r=m;}
-return r;}});Object.defineProperty(Array.prototype,"upperBound",{value:function(object,comparator)
+return r;}});Object.defineProperty(Array.prototype,"upperBound",{value:function(object,comparator,left,right)
 {function defaultComparator(a,b)
 {return a<b?-1:(a>b?1:0);}
-comparator=comparator||defaultComparator;var l=0;var r=this.length;while(l<r){var m=(l+r)>>1;if(comparator(object,this[m])>=0)
+comparator=comparator||defaultComparator;var l=left||0;var r=right!==undefined?right:this.length;while(l<r){var m=(l+r)>>1;if(comparator(object,this[m])>=0)
 l=m+1;else
 r=m;}
 return r;}});Object.defineProperty(Array.prototype,"binaryIndexOf",{value:function(value,comparator)
 {var index=this.lowerBound(value,comparator);return index<this.length&&comparator(value,this[index])===0?index:-1;}});Object.defineProperty(Array.prototype,"select",{value:function(field)
 {var result=new Array(this.length);for(var i=0;i<this.length;++i)
 result[i]=this[i][field];return result;}});Object.defineProperty(Array.prototype,"peekLast",{value:function()
 {return this[this.length-1];}});(function(){function mergeOrIntersect(array1,array2,comparator,mergeNotIntersect)
-{var result=[];var i=0;var j=0;while(i<array1.length||j<array2.length){if(i===array1.length){result=result.concat(array2.slice(j));j=array2.length;}else if(j===array2.length){result=result.concat(array1.slice(i));i=array1.length;}else{var compareValue=comparator(array1[i],array2[j])
-if(compareValue<0){if(mergeNotIntersect)
-result.push(array1[i]);++i;}else if(compareValue>0){if(mergeNotIntersect)
-result.push(array2[j]);++j;}else{result.push(array1[i]);++i;++j;}}}
+{var result=[];var i=0;var j=0;while(i<array1.length&&j<array2.length){var compareValue=comparator(array1[i],array2[j]);if(mergeNotIntersect||!compareValue)
+result.push(compareValue<=0?array1[i]:array2[j]);if(compareValue<=0)
+i++;if(compareValue>=0)
+j++;}
+if(mergeNotIntersect){while(i<array1.length)
+result.push(array1[i++]);while(j<array2.length)
+result.push(array2[j++]);}
 return result;}
 Object.defineProperty(Array.prototype,"intersectOrdered",{value:function(array,comparator)
 {return mergeOrIntersect(this,array,comparator,false);}});Object.defineProperty(Array.prototype,"mergeOrdered",{value:function(array,comparator)
 {return mergeOrIntersect(this,array,comparator,true);}});}());function insertionIndexForObjectInListSortedByFunction(object,list,comparator,insertionIndexAfter)
 {if(insertionIndexAfter)
 return list.upperBound(object,comparator);else
 return list.lowerBound(object,comparator);}
 String.sprintf=function(format,var_arg)
 {return String.vsprintf(format,Array.prototype.slice.call(arguments,1));}
 String.tokenizeFormatString=function(format,formatters)
@@ skipping 94 matching lines @@
 result.push("__proto__");return result;},values:function()
 {var result=Object.values(this._map);if(this._hasProtoKey)
 result.push(this._protoValue);return result;},get:function(key)
 {if(key==="__proto__")
 return this._protoValue;if(!Object.prototype.hasOwnProperty.call(this._map,key))
 return undefined;return this._map[key];},contains:function(key)
 {var result;if(key==="__proto__")
 return this._hasProtoKey;return Object.prototype.hasOwnProperty.call(this._map,key);},size:function()
 {return this._size;},clear:function()
 {this._map={};this._size=0;delete this._hasProtoKey;delete this._protoValue;}}
+var StringSet=function()
+{this._map=new StringMap();}
+StringSet.prototype={put:function(value)
+{this._map.put(value,true);},remove:function(value)
+{return!!this._map.remove(value);},values:function()
+{return this._map.keys();},contains:function(value)
+{return this._map.contains(value);},size:function()
+{return this._map.size();},clear:function()
+{this._map.clear();}}
 function loadXHR(url,async,callback)
 {function onReadyStateChanged()
 {if(xhr.readyState!==XMLHttpRequest.DONE)
 return;if(xhr.status===200){callback(xhr.responseText);return;}
 callback(null);}
 var xhr=new XMLHttpRequest();xhr.open("GET",url,async);if(async)
 xhr.onreadystatechange=onReadyStateChanged;xhr.send(null);if(!async){if(xhr.status===200)
 return xhr.responseText;return null;}
 return null;}
-function StringPool()
-{this.reset();}
-StringPool.prototype={intern:function(string)
-{if(string==="__proto__")
-return"__proto__";var result=this._strings[string];if(result===undefined){this._strings[string]=string;result=string;}
-return result;},reset:function()
-{this._strings=Object.create(null);},internObjectStrings:function(obj,depthLimit)
-{if(typeof depthLimit!=="number")
-depthLimit=100;else if(--depthLimit<0)
-throw"recursion depth limit reached in StringPool.deepIntern(), perhaps attempting to traverse cyclical references?";for(var field in obj){switch(typeof obj[field]){case"string":obj[field]=this.intern(obj[field]);break;case"object":this.internObjectStrings(obj[field],depthLimit);break;}}}}
 var _importedScripts={};function importScript(scriptName)
 {if(_importedScripts[scriptName])
 return;var xhr=new XMLHttpRequest();_importedScripts[scriptName]=true;xhr.open("GET",scriptName,false);xhr.send(null);if(!xhr.responseText)
-throw"empty response arrived for script '"+scriptName+"'";var baseUrl=location.href;baseUrl=baseUrl.substring(0,baseUrl.lastIndexOf("/"));var sourceURL=baseUrl+"/"+scriptName;eval(xhr.responseText+"\n//# sourceURL="+sourceURL);}
+throw"empty response arrived for script '"+scriptName+"'";var baseUrl=location.origin+location.pathname;baseUrl=baseUrl.substring(0,baseUrl.lastIndexOf("/"));var sourceURL=baseUrl+"/"+scriptName;self.eval(xhr.responseText+"\n//# sourceURL="+sourceURL);}
 var loadScript=importScript;function CallbackBarrier()
 {this._pendingIncomingCallbacksCount=0;}
 CallbackBarrier.prototype={createCallback:function(userCallback)
 {console.assert(!this._outgoingCallback,"CallbackBarrier.createCallback() is called after CallbackBarrier.callWhenDone()");++this._pendingIncomingCallbacksCount;return this._incomingCallback.bind(this,userCallback);},callWhenDone:function(callback)
 {console.assert(!this._outgoingCallback,"CallbackBarrier.callWhenDone() is called multiple times");this._outgoingCallback=callback;if(!this._pendingIncomingCallbacksCount)
 this._outgoingCallback();},_incomingCallback:function(userCallback)
 {console.assert(this._pendingIncomingCallbacksCount>0);if(userCallback){var args=Array.prototype.slice.call(arguments,1);userCallback.apply(null,args);}
 if(!--this._pendingIncomingCallbacksCount&&this._outgoingCallback)
-this._outgoingCallback();}};function postMessageWrapper(message)
+this._outgoingCallback();}}
+function suppressUnused(value)
+{};function postMessageWrapper(message)
 {postMessage(message);}
 var dispatcher=new WebInspector.HeapSnapshotWorkerDispatcher(this,postMessageWrapper);addEventListener("message",dispatcher.dispatchMessage.bind(dispatcher),false);