Remove snapshots-related code that is implemented in DevTools heap profiler.

include/v8-profiler.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 222 matching lines @@
   Handle<Value> GetName() const;
 
   /** Returns origin node. */
   const HeapGraphNode* GetFromNode() const;
 
   /** Returns destination node. */
   const HeapGraphNode* GetToNode() const;
 };
 
 
-class V8EXPORT HeapGraphPath {
- public:
-  /** Returns the number of edges in the path. */
-  int GetEdgesCount() const;
-
-  /** Returns an edge from the path. */
-  const HeapGraphEdge* GetEdge(int index) const;
-
-  /** Returns origin node. */
-  const HeapGraphNode* GetFromNode() const;
-
-  /** Returns destination node. */
-  const HeapGraphNode* GetToNode() const;
-};
-
-
 /**
  * HeapGraphNode represents a node in a heap graph.
  */
 class V8EXPORT HeapGraphNode {
  public:
   enum Type {
     kHidden = 0,      // Hidden node, may be filtered when shown to user.
     kArray = 1,       // An array of elements.
     kString = 2,      // A string.
     kObject = 3,      // A JS object (except for arrays and strings).
@@ skipping 49 matching lines @@
 
   /** Retrieves a child by index. */
   const HeapGraphEdge* GetChild(int index) const;
 
   /** Returns retainer nodes count of the node. */
   int GetRetainersCount() const;
 
   /** Returns a retainer by index. */
   const HeapGraphEdge* GetRetainer(int index) const;
 
-  /** Returns the number of simple retaining paths from the root to the node. */
-  int GetRetainingPathsCount() const;
-
-  /** Returns a retaining path by index. */
-  const HeapGraphPath* GetRetainingPath(int index) const;
-
   /**
    * Returns a dominator node. This is the node that participates in every
    * path from the snapshot root to the current node.
    */
   const HeapGraphNode* GetDominatorNode() const;
 };
 
 
-class V8EXPORT HeapSnapshotsDiff {
- public:
-  /** Returns the root node for added nodes. */
-  const HeapGraphNode* GetAdditionsRoot() const;
-
-  /** Returns the root node for deleted nodes. */
-  const HeapGraphNode* GetDeletionsRoot() const;
-};
-
-
 /**
  * HeapSnapshots record the state of the JS heap at some moment.
  */
 class V8EXPORT HeapSnapshot {
  public:
   enum Type {
     kFull = 0,       // Heap snapshot with all instances and references.
     kAggregated = 1  // Snapshot doesn't contain individual heap entries,
                      // instead they are grouped by constructor name.
   };
@@ skipping 10 matching lines @@
   /** Returns heap snapshot title. */
   Handle<String> GetTitle() const;
 
   /** Returns the root node of the heap graph. */
   const HeapGraphNode* GetRoot() const;
 
   /** Returns a node by its id. */
   const HeapGraphNode* GetNodeById(uint64_t id) const;
 
   /**
-   * Returns a diff between this snapshot and another one. Only snapshots
-   * of the same type can be compared.
-   */
-  const HeapSnapshotsDiff* CompareWith(const HeapSnapshot* snapshot) const;
-
-  /**
    * Deletes the snapshot and removes it from HeapProfiler's list.
    * All pointers to nodes, edges and paths previously returned become
    * invalid.
    */
   void Delete();
 
   /**
    * Prepare a serialized representation of the snapshot. The result
    * is written into the stream provided in chunks of specified size.
    * The total length of the serialized snapshot is unknown in
@@ skipping 136 matching lines @@
 };
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 
 
 #endif  // V8_V8_PROFILER_H_