Update reference builds to Chrome 32.0.1700.19

chrome_linux64/resources/inspector/LayersPanel.js

Index: chrome_linux64/resources/inspector/LayersPanel.js
===================================================================
--- chrome_linux64/resources/inspector/LayersPanel.js	(revision 237140)
+++ chrome_linux64/resources/inspector/LayersPanel.js	(working copy)
@@ -1,34 +1,32 @@
 WebInspector.LayerTreeModel=function()
-{WebInspector.Object.call(this);this._layersById={};InspectorBackend.registerLayerTreeDispatcher(new WebInspector.LayerTreeDispatcher(this));LayerTreeAgent.enable();this._needsRefresh=true;}
-WebInspector.LayerTreeModel.Events={LayerTreeChanged:"LayerTreeChanged",}
-WebInspector.LayerTreeModel.prototype={dispose:function()
-{LayerTreeAgent.disable();},root:function()
+{WebInspector.Object.call(this);this._layersById={};this._lastPaintRectByLayerId={};InspectorBackend.registerLayerTreeDispatcher(new WebInspector.LayerTreeDispatcher(this));WebInspector.domAgent.addEventListener(WebInspector.DOMAgent.Events.DocumentUpdated,this._onDocumentUpdated,this);}
+WebInspector.LayerTreeModel.Events={LayerTreeChanged:"LayerTreeChanged",LayerPainted:"LayerPainted",}
+WebInspector.LayerTreeModel.prototype={disable:function()
+{if(!this._enabled)
+return;this._enabled=false;LayerTreeAgent.disable();},enable:function(callback)
+{if(this._enabled)
+return;this._enabled=true;WebInspector.domAgent.requestDocument(onDocumentAvailable.bind(this));function onDocumentAvailable()
+{if(!this._enabled)
+return;LayerTreeAgent.enable();}},root:function()
 {return this._root;},contentRoot:function()
 {return this._contentRoot;},forEachLayer:function(callback,root)
 {if(!root){root=this.root();if(!root)
 return false;}
-return callback(root)||root.children().some(this.forEachLayer.bind(this,callback));},requestLayers:function(callback)
-{delete this._delayedRequestLayersTimer;if(!callback)
-callback=function(){}
-if(!this._needsRefresh){callback();return;}
-if(this._pendingRequestLayersCallbacks){this._pendingRequestLayersCallbacks.push(callback);return;}
-this._pendingRequestLayersCallbacks=[];this._pendingRequestLayersCallbacks.push(callback);function onGetLayers(error,layers)
-{this._root=null;this._contentRoot=null;if(error){console.error("LayerTreeAgent.getLayers(): "+error);layers=[];}
-this._repopulate(layers);for(var i=0;i<this._pendingRequestLayersCallbacks.length;++i)
-this._pendingRequestLayersCallbacks[i]();delete this._pendingRequestLayersCallbacks;}
-function onDocumentAvailable()
-{LayerTreeAgent.getLayers(undefined,onGetLayers.bind(this))}
-WebInspector.domAgent.requestDocument(onDocumentAvailable.bind(this));},layerById:function(id)
+return callback(root)||root.children().some(this.forEachLayer.bind(this,callback));},layerById:function(id)
 {return this._layersById[id];},_repopulate:function(payload)
-{var oldLayersById=this._layersById;this._layersById={};for(var i=0;i<payload.length;++i){var layer=oldLayersById[payload[i].layerId];if(layer)
+{var oldLayersById=this._layersById;this._layersById={};for(var i=0;i<payload.length;++i){var layerId=payload[i].layerId;var layer=oldLayersById[layerId];if(layer)
 layer._reset(payload[i]);else
-layer=new WebInspector.Layer(payload[i]);this._layersById[layer.id()]=layer;var parentId=layer.parentId();if(!this._contentRoot&&layer.nodeId())
-this._contentRoot=layer;if(parentId){var parent=this._layersById[parentId];if(!parent)
-console.assert(parent,"missing parent "+parentId+" for layer "+layer.id());parent.addChild(layer);}else{if(this._root)
+layer=new WebInspector.Layer(payload[i]);this._layersById[layerId]=layer;var parentId=layer.parentId();if(!this._contentRoot&&layer.nodeId())
+this._contentRoot=layer;var lastPaintRect=this._lastPaintRectByLayerId[layerId];if(lastPaintRect)
+layer._lastPaintRect=lastPaintRect;if(parentId){var parent=this._layersById[parentId];if(!parent)
+console.assert(parent,"missing parent "+parentId+" for layer "+layerId);parent.addChild(layer);}else{if(this._root)
 console.assert(false,"Multiple root layers");this._root=layer;}}
-this.dispatchEventToListeners(WebInspector.LayerTreeModel.Events.LayerTreeChanged);},_layerTreeChanged:function()
-{if(this._delayedRequestLayersTimer)
-return;this._needsRefresh=true;this._delayedRequestLayersTimer=setTimeout(this.requestLayers.bind(this),100);},__proto__:WebInspector.Object.prototype}
+this._lastPaintRectByLayerId={};},_layerTreeChanged:function(payload)
+{this._root=null;this._contentRoot=null;if(payload)
+this._repopulate(payload);this.dispatchEventToListeners(WebInspector.LayerTreeModel.Events.LayerTreeChanged);},_layerPainted:function(layerId,clipRect)
+{var layer=this._layersById[layerId];if(!layer){this._lastPaintRectByLayerId[layerId]=clipRect;return;}
+layer._didPaint(clipRect);this.dispatchEventToListeners(WebInspector.LayerTreeModel.Events.LayerPainted,layer);},_onDocumentUpdated:function()
+{this.disable();this.enable();},__proto__:WebInspector.Object.prototype}
 WebInspector.Layer=function(layerPayload)
 {this._reset(layerPayload);}
 WebInspector.Layer.prototype={id:function()
@@ -50,22 +48,22 @@
 {return this._layerPayload.transform;},anchorPoint:function()
 {return[this._layerPayload.anchorX||0,this._layerPayload.anchorY||0,this._layerPayload.anchorZ||0,];},invisible:function()
 {return this._layerPayload.invisible;},paintCount:function()
-{return this._layerPayload.paintCount;},requestCompositingReasons:function(callback)
+{return this._paintCount||this._layerPayload.paintCount;},lastPaintRect:function()
+{return this._lastPaintRect;},requestCompositingReasons:function(callback)
 {function callbackWrapper(error,compositingReasons)
 {if(error){console.error("LayerTreeAgent.reasonsForCompositingLayer(): "+error);callback(null);return;}
 callback(compositingReasons);}
-LayerTreeAgent.compositingReasons(this.id(),callbackWrapper.bind(this));},_reset:function(layerPayload)
-{this._children=[];this._parent=null;this._layerPayload=layerPayload;}}
+LayerTreeAgent.compositingReasons(this.id(),callbackWrapper.bind(this));},_didPaint:function(rect)
+{this._lastPaintRect=rect;this._paintCount=this.paintCount()+1;},_reset:function(layerPayload)
+{this._children=[];this._parent=null;this._paintCount=0;this._layerPayload=layerPayload;}}
 WebInspector.LayerTreeDispatcher=function(layerTreeModel)
 {this._layerTreeModel=layerTreeModel;}
-WebInspector.LayerTreeDispatcher.prototype={layerTreeDidChange:function()
-{this._layerTreeModel._layerTreeChanged();}};WebInspector.LayerTree=function(model,treeOutline)
-{WebInspector.Object.call(this);this._model=model;this._treeOutline=treeOutline;this._treeOutline.childrenListElement.addEventListener("mousemove",this._onMouseMove.bind(this),false);this._treeOutline.childrenListElement.addEventListener("mouseout",this._onMouseMove.bind(this),false);this._treeOutline.childrenListElement.addEventListener("contextmenu",this._onContextMenu.bind(this),true);this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerTreeChanged,this._update.bind(this));this._lastHoveredNode=null;this._needsUpdate=true;}
+WebInspector.LayerTreeDispatcher.prototype={layerTreeDidChange:function(payload)
+{this._layerTreeModel._layerTreeChanged(payload);},layerPainted:function(layerId,clipRect)
+{this._layerTreeModel._layerPainted(layerId,clipRect);}};WebInspector.LayerTree=function(model,treeOutline)
+{WebInspector.Object.call(this);this._model=model;this._treeOutline=treeOutline;this._treeOutline.childrenListElement.addEventListener("mousemove",this._onMouseMove.bind(this),false);this._treeOutline.childrenListElement.addEventListener("mouseout",this._onMouseMove.bind(this),false);this._treeOutline.childrenListElement.addEventListener("contextmenu",this._onContextMenu.bind(this),true);this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerTreeChanged,this._update.bind(this));this._lastHoveredNode=null;}
 WebInspector.LayerTree.Events={LayerHovered:"LayerHovered",LayerSelected:"LayerSelected"}
-WebInspector.LayerTree.prototype={setVisible:function(visible)
-{if(this._isVisible===visible)
-return;this._isVisible=visible;if(visible&&this._needsUpdate)
-this._update();},selectLayer:function(layer)
+WebInspector.LayerTree.prototype={selectLayer:function(layer)
 {this.hoverLayer(null);var node=layer&&this._treeOutline.getCachedTreeElement(layer);if(node)
 node.revealAndSelect(true);else if(this._treeOutline.selectedTreeElement)
 this._treeOutline.selectedTreeElement.deselect();},hoverLayer:function(layer)
@@ -73,12 +71,12 @@
 return;if(this._lastHoveredNode)
 this._lastHoveredNode.setHovered(false);if(node)
 node.setHovered(true);this._lastHoveredNode=node;},_update:function()
-{if(!this._isVisible){this._needsUpdate=true;return;}
-this._needsUpdate=false;var seenLayers={};function updateLayer(layer)
+{var seenLayers={};function updateLayer(layer)
 {var id=layer.id();if(seenLayers[id])
 console.assert(false,"Duplicate layer id: "+id);seenLayers[id]=true;var node=this._treeOutline.getCachedTreeElement(layer);var parent=layer===this._model.contentRoot()?this._treeOutline:this._treeOutline.getCachedTreeElement(layer.parent());if(!parent)
 console.assert(false,"Parent is not in the tree");if(!node){node=new WebInspector.LayerTreeElement(this,layer);parent.appendChild(node);}else{var oldParentId=node.parent.representedObject&&node.parent.representedObject.id();if(oldParentId!==layer.parentId()){(node.parent||this._treeOutline).removeChild(node);parent.appendChild(node);}
 node._update();}}
+if(this._model.contentRoot())
 this._model.forEachLayer(updateLayer.bind(this),this._model.contentRoot());for(var node=(this._treeOutline.children[0]);node&&!node.root;){if(seenLayers[node.representedObject.id()]){node=node.traverseNextTreeElement(false);}else{var nextNode=node.nextSibling||node.parent;node.parent.removeChild(node);if(node===this._lastHoveredNode)
 this._lastHoveredNode=null;node=nextNode;}}},_onMouseMove:function(event)
 {var node=this._treeOutline.treeElementFromPoint(event.pageX,event.pageY);if(node===this._lastHoveredNode)
@@ -96,9 +94,10 @@
 {var layer=(this.representedObject);var nodeId=layer.nodeIdForSelfOrAncestor();var node=nodeId&&WebInspector.domAgent.nodeForId(nodeId);var title=document.createDocumentFragment();title.createChild("div","selection");title.appendChild(document.createTextNode(node?node.appropriateSelectorFor(false):"#"+layer.id()));var details=title.createChild("span","dimmed");details.textContent=WebInspector.UIString(" (%d × %d)",layer.width(),layer.height());this.title=title;},onselect:function()
 {this._layerTree._selectedNodeChanged(this);},setHovered:function(hovered)
 {this.listItemElement.enableStyleClass("hovered",hovered);},__proto__:TreeElement.prototype};WebInspector.Layers3DView=function(model)
-{WebInspector.View.call(this);this.element.classList.add("fill");this.element.classList.add("layers-3d-view");this._emptyView=new WebInspector.EmptyView(WebInspector.UIString("Not in the composited mode.\nConsider forcing composited mode in Settings."));this._model=model;this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerTreeChanged,this._update,this);this._rotatingContainerElement=this.element.createChild("div","fill rotating-container");this.element.addEventListener("mousemove",this._onMouseMove.bind(this),false);this.element.addEventListener("mouseout",this._onMouseMove.bind(this),false);this.element.addEventListener("mousedown",this._onMouseDown.bind(this),false);this.element.addEventListener("mouseup",this._onMouseUp.bind(this),false);this.element.addEventListener("contextmenu",this._onContextMenu.bind(this),false);this.element.addEventListener("click",this._onClick.bind(this),false);this._elementsByLayerId={};this._rotateX=0;this._rotateY=0;this._scaleAdjustmentStylesheet=this.element.ownerDocument.head.createChild("style");this._scaleAdjustmentStylesheet.disabled=true;this._lastOutlinedElement={};}
+{WebInspector.View.call(this);this.element.classList.add("fill");this.element.classList.add("layers-3d-view");this._emptyView=new WebInspector.EmptyView(WebInspector.UIString("Not in the composited mode.\nConsider forcing composited mode in Settings."));this._model=model;this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerTreeChanged,this._update,this);this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerPainted,this._onLayerPainted,this);this._rotatingContainerElement=this.element.createChild("div","fill rotating-container");this.element.addEventListener("mousemove",this._onMouseMove.bind(this),false);this.element.addEventListener("mouseout",this._onMouseMove.bind(this),false);this.element.addEventListener("mousedown",this._onMouseDown.bind(this),false);this.element.addEventListener("mouseup",this._onMouseUp.bind(this),false);this.element.addEventListener("contextmenu",this._onContextMenu.bind(this),false);this.element.addEventListener("click",this._onClick.bind(this),false);this._elementsByLayerId={};this._rotateX=0;this._rotateY=0;this._scaleAdjustmentStylesheet=this.element.ownerDocument.head.createChild("style");this._scaleAdjustmentStylesheet.disabled=true;this._lastOutlinedElement={};WebInspector.settings.showPaintRects.addChangeListener(this._update,this);}
 WebInspector.Layers3DView.OutlineType={Hovered:"hovered",Selected:"selected"}
 WebInspector.Layers3DView.Events={LayerHovered:"LayerHovered",LayerSelected:"LayerSelected"}
+WebInspector.Layers3DView.PaintRectColors=[WebInspector.Color.fromRGBA([0xFF,0,0]),WebInspector.Color.fromRGBA([0xFF,0,0xFF]),WebInspector.Color.fromRGBA([0,0,0xFF])]
 WebInspector.Layers3DView.prototype={onResize:function()
 {this._update();},willHide:function()
 {this._scaleAdjustmentStylesheet.disabled=true;},wasShown:function()
@@ -112,23 +111,27 @@
 {var root=this._model.contentRoot();if(!root)
 return;const padding=40;var scaleX=this._clientWidth/(root.width()+2*padding);var scaleY=this._clientHeight/(root.height()+2*padding);this._scale=Math.min(scaleX,scaleY);const screenLayerSpacing=20;this._layerSpacing=Math.ceil(screenLayerSpacing/this._scale)+"px";const screenLayerThickness=4;var layerThickness=Math.ceil(screenLayerThickness/this._scale)+"px";var stylesheetContent=".layer-container .side-wall { height: "+layerThickness+"; width: "+layerThickness+"; } "+".layer-container .back-wall { -webkit-transform: translateZ(-"+layerThickness+"); } "+".layer-container { -webkit-transform: translateZ("+this._layerSpacing+"); }";var stylesheetTextNode=this._scaleAdjustmentStylesheet.firstChild;if(!stylesheetTextNode||stylesheetTextNode.nodeType!==Node.TEXT_NODE||stylesheetTextNode.nextSibling)
 this._scaleAdjustmentStylesheet.textContent=stylesheetContent;else
-stylesheetTextNode.nodeValue=stylesheetContent;var element=this._elementForLayer(root);element.style.webkitTransform="scale3d("+this._scale+","+this._scale+","+this._scale+")";element.style.left=((this._clientWidth-root.width()*this._scale)>>1)+"px";element.style.top=((this._clientHeight-root.height()*this._scale)>>1)+"px";},_update:function()
+stylesheetTextNode.nodeValue=stylesheetContent;var element=this._elementForLayer(root);element.style.webkitTransform="scale3d("+this._scale+","+this._scale+","+this._scale+")";element.style.webkitTransformOrigin="";element.style.left=((this._clientWidth-root.width()*this._scale)>>1)+"px";element.style.top=((this._clientHeight-root.height()*this._scale)>>1)+"px";},_update:function()
 {if(!this.isShowing()){this._needsUpdate=true;return;}
 if(!this._model.contentRoot()){this._emptyView.show(this.element);this._rotatingContainerElement.removeChildren();return;}
 this._emptyView.detach();function updateLayer(layer)
 {this._updateLayerElement(this._elementForLayer(layer));}
 this._clientWidth=this.element.clientWidth;this._clientHeight=this.element.clientHeight;for(var layerId in this._elementsByLayerId){if(this._model.layerById(layerId))
 continue;this._elementsByLayerId[layerId].remove();delete this._elementsByLayerId[layerId];}
-this._scaleToFit();this._model.forEachLayer(updateLayer.bind(this),this._model.contentRoot());this._needsUpdate=false;},_elementForLayer:function(layer)
-{var element=this._elementsByLayerId[layer.id()];if(element){element.__layer=layer;return element;}
-element=document.createElement("div");element.className="layer-container";element.__layer=layer;["fill back-wall","side-wall top","side-wall right","side-wall bottom","side-wall left"].forEach(element.createChild.bind(element,"div"));this._elementsByLayerId[layer.id()]=element;return element;},_updateLayerElement:function(element)
-{var layer=element.__layer;var style=element.style;var isContentRoot=layer===this._model.contentRoot();var parentElement=isContentRoot?this._rotatingContainerElement:this._elementForLayer(layer.parent());element.__depth=(parentElement.__depth||0)+1;element.enableStyleClass("invisible",layer.invisible());this._updateElementColor(element);if(parentElement!==element.parentElement)
-parentElement.appendChild(element);style.width=layer.width()+"px";style.height=layer.height()+"px";if(isContentRoot)
+this._scaleToFit();this._model.forEachLayer(updateLayer.bind(this),this._model.contentRoot());this._needsUpdate=false;},_onLayerPainted:function(event)
+{var layer=(event.data);this._updatePaintRect(this._elementForLayer(layer));},_elementForLayer:function(layer)
+{var element=this._elementsByLayerId[layer.id()];if(element){element.__layerDetails.layer=layer;return element;}
+element=document.createElement("div");element.className="layer-container";["fill back-wall","side-wall top","side-wall right","side-wall bottom","side-wall left"].forEach(element.createChild.bind(element,"div"));element.__layerDetails=new WebInspector.LayerDetails(layer,element.createChild("div","paint-rect"));this._elementsByLayerId[layer.id()]=element;return element;},_updateLayerElement:function(element)
+{var layer=element.__layerDetails.layer;var style=element.style;var isContentRoot=layer===this._model.contentRoot();var parentElement=isContentRoot?this._rotatingContainerElement:this._elementForLayer(layer.parent());element.__layerDetails.depth=parentElement.__layerDetails?parentElement.__layerDetails.depth+1:0;element.enableStyleClass("invisible",layer.invisible());this._updateElementColor(element);if(parentElement!==element.parentElement)
+parentElement.appendChild(element);style.width=layer.width()+"px";style.height=layer.height()+"px";this._updatePaintRect(element);if(isContentRoot)
 return;style.left=layer.offsetX()+"px";style.top=layer.offsetY()+"px";var transform=layer.transform();if(transform){function toFixed5(x)
 {return x.toFixed(5);}
-style.webkitTransform="matrix3d("+transform.map(toFixed5).join(",")+") translateZ("+this._layerSpacing+")";var anchor=layer.anchorPoint();style.webkitTransformOrigin=Math.round(anchor[0]*100)+"% "+Math.round(anchor[1]*100)+"% "+anchor[2];}else{style.webkitTransform="";style.webkitTransformOrigin="";}},_updateElementColor:function(element)
+style.webkitTransform="matrix3d("+transform.map(toFixed5).join(",")+") translateZ("+this._layerSpacing+")";var anchor=layer.anchorPoint();style.webkitTransformOrigin=Math.round(anchor[0]*100)+"% "+Math.round(anchor[1]*100)+"% "+anchor[2];}else{style.webkitTransform="";style.webkitTransformOrigin="";}},_updatePaintRect:function(element)
+{var details=element.__layerDetails;var paintRect=details.layer.lastPaintRect();var paintRectElement=details.paintRectElement;if(!paintRect||!WebInspector.settings.showPaintRects.get()){paintRectElement.addStyleClass("hidden");return;}
+paintRectElement.removeStyleClass("hidden");if(details.paintCount===details.layer.paintCount())
+return;details.paintCount=details.layer.paintCount();var style=paintRectElement.style;style.left=paintRect.x+"px";style.top=paintRect.y+"px";style.width=paintRect.width+"px";style.height=paintRect.height+"px";var color=WebInspector.Layers3DView.PaintRectColors[details.paintCount%WebInspector.Layers3DView.PaintRectColors.length];style.borderWidth=Math.ceil(1/this._scale)+"px";style.borderColor=color.toString(WebInspector.Color.Format.RGBA);},_updateElementColor:function(element)
 {var color;if(element===this._lastOutlinedElement[WebInspector.Layers3DView.OutlineType.Selected])
-color=WebInspector.Color.PageHighlight.Content.toString(WebInspector.Color.Format.RGBA)||"";else{const base=144;var component=base+20*((element.__depth-1)%5);color="rgba("+component+","+component+","+component+", 0.8)";}
+color=WebInspector.Color.PageHighlight.Content.toString(WebInspector.Color.Format.RGBA)||"";else{const base=144;var component=base+20*((element.__layerDetails.depth-1)%5);color="rgba("+component+","+component+","+component+", 0.8)";}
 element.style.backgroundColor=color;},_onMouseDown:function(event)
 {if(event.which!==1)
 return;this._setReferencePoint(event);},_setReferencePoint:function(event)
@@ -137,14 +140,16 @@
 {if(event.which!==1)
 return;this._resetReferencePoint();},_layerFromEventPoint:function(event)
 {var element=this.element.ownerDocument.elementFromPoint(event.pageX,event.pageY);if(!element)
-return null;element=element.enclosingNodeOrSelfWithClass("layer-container");return element&&element.__layer;},_onMouseMove:function(event)
+return null;element=element.enclosingNodeOrSelfWithClass("layer-container");return element&&element.__layerDetails&&element.__layerDetails.layer;},_onMouseMove:function(event)
 {if(!event.which){this.dispatchEventToListeners(WebInspector.Layers3DView.Events.LayerHovered,this._layerFromEventPoint(event));return;}
 if(event.which===1){if(typeof this._originX!=="number")
 this._setReferencePoint(event);this._rotateX=this._oldRotateX+(this._originY-event.clientY)/2;this._rotateY=this._oldRotateY-(this._originX-event.clientX)/4;this._rotatingContainerElement.style.webkitTransform="translateZ(10000px) rotateX("+this._rotateX+"deg) rotateY("+this._rotateY+"deg)";}},_onContextMenu:function(event)
 {var layer=this._layerFromEventPoint(event);var nodeId=layer&&layer.nodeId();if(!nodeId)
 return;var domNode=WebInspector.domAgent.nodeForId(nodeId);if(!domNode)
 return;var contextMenu=new WebInspector.ContextMenu(event);contextMenu.appendApplicableItems(domNode);contextMenu.show();},_onClick:function(event)
-{this.dispatchEventToListeners(WebInspector.Layers3DView.Events.LayerSelected,this._layerFromEventPoint(event));},__proto__:WebInspector.View.prototype};WebInspector.LayerDetailsView=function()
+{this.dispatchEventToListeners(WebInspector.Layers3DView.Events.LayerSelected,this._layerFromEventPoint(event));},__proto__:WebInspector.View.prototype}
+WebInspector.LayerDetails=function(layer,paintRectElement)
+{this.layer=layer;this.depth=0;this.paintRectElement=paintRectElement;this.paintCount=0;};WebInspector.LayerDetailsView=function()
 {WebInspector.View.call(this);this.element.classList.add("fill");this.element.classList.add("layer-details-view");this._emptyView=new WebInspector.EmptyView(WebInspector.UIString("Select a layer to see its details"));this._createTable();this.showLayer(null);}
 WebInspector.LayerDetailsView.CompositingReasonDetail={"transform3D":WebInspector.UIString("Composition due to association with an element with a CSS 3D transform."),"video":WebInspector.UIString("Composition due to association with a <video> element."),"canvas":WebInspector.UIString("Composition due to the element being a <canvas> element."),"plugin":WebInspector.UIString("Composition due to association with a plugin."),"iFrame":WebInspector.UIString("Composition due to association with an <iframe> element."),"backfaceVisibilityHidden":WebInspector.UIString("Composition due to association with an element with a \"backface-visibility: hidden\" style."),"animation":WebInspector.UIString("Composition due to association with an animated element."),"filters":WebInspector.UIString("Composition due to association with an element with CSS filters applied."),"positionFixed":WebInspector.UIString("Composition due to association with an element with a \"position: fixed\" style."),"positionSticky":WebInspector.UIString("Composition due to association with an element with a \"position: sticky\" style."),"overflowScrollingTouch":WebInspector.UIString("Composition due to association with an element with a \"overflow-scrolling: touch\" style."),"blending":WebInspector.UIString("Composition due to association with an element that has blend mode other than \"normal\"."),"assumedOverlap":WebInspector.UIString("Composition due to association with an element that may overlap other composited elements."),"overlap":WebInspector.UIString("Composition due to association with an element overlapping other composited elements."),"negativeZIndexChildren":WebInspector.UIString("Composition due to association with an element with descendants that have a negative z-index."),"transformWithCompositedDescendants":WebInspector.UIString("Composition due to association with an element with composited descendants."),"opacityWithCompositedDescendants":WebInspector.UIString("Composition due to association with an element with opacity applied and composited descendants."),"maskWithCompositedDescendants":WebInspector.UIString("Composition due to association with a masked element and composited descendants."),"reflectionWithCompositedDescendants":WebInspector.UIString("Composition due to association with an element with a reflection and composited descendants."),"filterWithCompositedDescendants":WebInspector.UIString("Composition due to association with an element with CSS filters applied and composited descendants."),"blendingWithCompositedDescendants":WebInspector.UIString("Composition due to association with an element with CSS blending applied and composited descendants."),"clipsCompositingDescendants":WebInspector.UIString("Composition due to association with an element clipping compositing descendants."),"perspective":WebInspector.UIString("Composition due to association with an element with perspective applied."),"preserve3D":WebInspector.UIString("Composition due to association with an element with a \"transform-style: preserve-3d\" style."),"root":WebInspector.UIString("Root layer."),"layerForClip":WebInspector.UIString("Layer for clip."),"layerForScrollbar":WebInspector.UIString("Layer for scrollbar."),"layerForScrollingContainer":WebInspector.UIString("Layer for scrolling container."),"layerForForeground":WebInspector.UIString("Layer for foreground."),"layerForBackground":WebInspector.UIString("Layer for background."),"layerForMask":WebInspector.UIString("Layer for mask."),"layerForVideoOverlay":WebInspector.UIString("Layer for video overlay.")};WebInspector.LayerDetailsView.prototype={showLayer:function(layer)
 {if(!layer){this._tableElement.remove();this._emptyView.show(this.element);return;}
@@ -154,15 +159,18 @@
 {if(!compositingReasons||!compositingReasons.length){this._compositingReasonsCell.textContent="n/a";return;}
 var fragment=document.createDocumentFragment();for(var i=0;i<compositingReasons.length;++i){if(i)
 fragment.appendChild(document.createTextNode(","));var span=document.createElement("span");span.title=WebInspector.LayerDetailsView.CompositingReasonDetail[compositingReasons[i]]||"";span.textContent=compositingReasons[i];fragment.appendChild(span);}
-this._compositingReasonsCell.removeChildren();this._compositingReasonsCell.appendChild(fragment);},__proto__:WebInspector.View.prototype};WebInspector.LayersPanel=function()
-{WebInspector.Panel.call(this,"layers");this.registerRequiredCSS("layersPanel.css");const initialLayerTreeSidebarWidth=225;const minimumMainWidthPercent=0.5;this.createSidebarViewWithTree();this.sidebarElement.addStyleClass("outline-disclosure");this.sidebarTreeElement.removeStyleClass("sidebar-tree");this._model=new WebInspector.LayerTreeModel();this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerTreeChanged,this._onLayerTreeUpdated,this);this._currentlySelectedLayer=null;this._currentlyHoveredLayer=null;this._layerTree=new WebInspector.LayerTree(this._model,this.sidebarTree);this._layerTree.addEventListener(WebInspector.LayerTree.Events.LayerSelected,this._onLayerSelected,this);this._layerTree.addEventListener(WebInspector.LayerTree.Events.LayerHovered,this._onLayerHovered,this);this._layerDetailsSplitView=new WebInspector.SplitView(false,"layerDetailsSplitView");this._layerDetailsSplitView.show(this.splitView.mainElement);this._layers3DView=new WebInspector.Layers3DView(this._model);this._layers3DView.show(this._layerDetailsSplitView.firstElement());this._layers3DView.addEventListener(WebInspector.Layers3DView.Events.LayerSelected,this._onLayerSelected,this);this._layers3DView.addEventListener(WebInspector.Layers3DView.Events.LayerHovered,this._onLayerHovered,this);this._layerDetailsView=new WebInspector.LayerDetailsView();this._layerDetailsView.show(this._layerDetailsSplitView.secondElement());this._model.requestLayers();}
+this._compositingReasonsCell.removeChildren();this._compositingReasonsCell.appendChild(fragment);},updatePaintCount:function(paintCount)
+{this._paintCountCell.textContent=paintCount;},__proto__:WebInspector.View.prototype};WebInspector.LayersPanel=function()
+{WebInspector.Panel.call(this,"layers");this.registerRequiredCSS("layersPanel.css");const initialLayerTreeSidebarWidth=225;const minimumMainWidthPercent=0.5;this.createSidebarViewWithTree();this.sidebarElement.addStyleClass("outline-disclosure");this.sidebarTreeElement.removeStyleClass("sidebar-tree");this._model=new WebInspector.LayerTreeModel();this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerTreeChanged,this._onLayerTreeUpdated,this);this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerPainted,this._onLayerPainted,this);this._currentlySelectedLayer=null;this._currentlyHoveredLayer=null;this._layerTree=new WebInspector.LayerTree(this._model,this.sidebarTree);this._layerTree.addEventListener(WebInspector.LayerTree.Events.LayerSelected,this._onLayerSelected,this);this._layerTree.addEventListener(WebInspector.LayerTree.Events.LayerHovered,this._onLayerHovered,this);this._layerDetailsSplitView=new WebInspector.SplitView(false,"layerDetailsSplitView");this._layerDetailsSplitView.show(this.splitView.mainElement);this._layers3DView=new WebInspector.Layers3DView(this._model);this._layers3DView.show(this._layerDetailsSplitView.firstElement());this._layers3DView.addEventListener(WebInspector.Layers3DView.Events.LayerSelected,this._onLayerSelected,this);this._layers3DView.addEventListener(WebInspector.Layers3DView.Events.LayerHovered,this._onLayerHovered,this);this._layerDetailsView=new WebInspector.LayerDetailsView();this._layerDetailsView.show(this._layerDetailsSplitView.secondElement());}
 WebInspector.LayersPanel.prototype={wasShown:function()
-{WebInspector.Panel.prototype.wasShown.call(this);this._layerTree.setVisible(true);this.sidebarTreeElement.focus();},willHide:function()
-{this._layerTree.setVisible(false);WebInspector.Panel.prototype.willHide.call(this);},_onLayerTreeUpdated:function()
+{WebInspector.Panel.prototype.wasShown.call(this);this.sidebarTreeElement.focus();this._model.enable();},willHide:function()
+{this._model.disable();WebInspector.Panel.prototype.willHide.call(this);},_onLayerTreeUpdated:function()
 {if(this._currentlySelectedLayer&&!this._model.layerById(this._currentlySelectedLayer.id()))
 this._selectLayer(null);if(this._currentlyHoveredLayer&&!this._model.layerById(this._currentlyHoveredLayer.id()))
 this._hoverLayer(null);if(this._currentlySelectedLayer)
-this._layerDetailsView.showLayer(this._currentlySelectedLayer);},_onLayerSelected:function(event)
+this._layerDetailsView.showLayer(this._currentlySelectedLayer);},_onLayerPainted:function(event)
+{var layer=(event.data);if(this._currentlySelectedLayer===layer)
+this._layerDetailsView.updatePaintCount(this._currentlySelectedLayer.paintCount());},_onLayerSelected:function(event)
 {var layer=(event.data);this._selectLayer(layer);},_onLayerHovered:function(event)
 {var layer=(event.data);this._hoverLayer(layer);},_selectLayer:function(layer)
 {if(this._currentlySelectedLayer===layer)