Introduce callback for resolving global object name while taking heap snapshot

src/profile-generator.h

 // Copyright 2011 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 833 matching lines @@
   virtual ~SnapshottingProgressReportingInterface() { }
   virtual void ProgressStep() = 0;
   virtual bool ProgressReport(bool force) = 0;
 };
 
 
 // An implementation of V8 heap graph extractor.
 class V8HeapExplorer : public HeapEntriesAllocator {
  public:
   V8HeapExplorer(HeapSnapshot* snapshot,
-                 SnapshottingProgressReportingInterface* progress);
+                 SnapshottingProgressReportingInterface* progress,
+                 v8::HeapProfiler::ObjectNameResolver* resolver);
   virtual ~V8HeapExplorer();
   virtual HeapEntry* AllocateEntry(HeapThing ptr);
   void AddRootEntries(SnapshotFillerInterface* filler);
   int EstimateObjectsCount(HeapIterator* iterator);
   bool IterateAndExtractReferences(SnapshotFillerInterface* filler);
   void TagGlobalObjects();
 
   static String* GetConstructorName(JSObject* object);
 
   static HeapObject* const kInternalRootObject;
@@ skipping 73 matching lines @@
   static inline HeapObject* GetNthGcSubrootObject(int delta);
   static inline int GetGcSubrootOrder(HeapObject* subroot);
 
   Heap* heap_;
   HeapSnapshot* snapshot_;
   HeapSnapshotsCollection* collection_;
   SnapshottingProgressReportingInterface* progress_;
   SnapshotFillerInterface* filler_;
   HeapObjectsSet objects_tags_;
   HeapObjectsSet strong_gc_subroot_names_;
+  v8::HeapProfiler::ObjectNameResolver* global_object_name_resolver_;
 
   static HeapObject* const kGcRootsObject;
   static HeapObject* const kFirstGcSubrootObject;
   static HeapObject* const kLastGcSubrootObject;
 
   friend class IndexedReferencesExtractor;
   friend class GcSubrootsEnumerator;
   friend class RootsReferencesExtractor;
 
   DISALLOW_COPY_AND_ASSIGN(V8HeapExplorer);
@@ skipping 56 matching lines @@
 
   friend class GlobalHandlesExtractor;
 
   DISALLOW_COPY_AND_ASSIGN(NativeObjectsExplorer);
 };
 
 
 class HeapSnapshotGenerator : public SnapshottingProgressReportingInterface {
  public:
   HeapSnapshotGenerator(HeapSnapshot* snapshot,
-                        v8::ActivityControl* control);
+                        v8::ActivityControl* control,
+                        v8::HeapProfiler::ObjectNameResolver* resolver);
   bool GenerateSnapshot();
 
  private:
   bool FillReferences();
   void ProgressStep();
   bool ProgressReport(bool force = false);
   void SetProgressTotal(int iterations_count);
 
   HeapSnapshot* snapshot_;
   v8::ActivityControl* control_;
@@ skipping 56 matching lines @@
 
   friend class HeapSnapshotJSONSerializerEnumerator;
   friend class HeapSnapshotJSONSerializerIterator;
 
   DISALLOW_COPY_AND_ASSIGN(HeapSnapshotJSONSerializer);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_PROFILE_GENERATOR_H_