Maintain API compatibility with older versions of V8.

src/heap-profiler.h

 // Copyright 2009-2010 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 28 matching lines @@
 #define HEAP_PROFILE(heap, call)                                             \
   do {                                                                       \
     v8::internal::HeapProfiler* profiler = heap->isolate()->heap_profiler(); \
     if (profiler != NULL && profiler->is_profiling()) {                      \
       profiler->call;                                                        \
     }                                                                        \
   } while (false)
 
 class HeapProfiler {
  public:
-  explicit HeapProfiler(Heap* heap);
-  ~HeapProfiler();
+  static void SetUp();
+  static void TearDown();
 
-  size_t GetMemorySizeUsedByProfiler();
+  static size_t GetMemorySizeUsedByProfiler();
 
-  HeapSnapshot* TakeSnapshot(
+  static HeapSnapshot* TakeSnapshot(
       const char* name,
+      int type,
       v8::ActivityControl* control,
       v8::HeapProfiler::ObjectNameResolver* resolver);
-  HeapSnapshot* TakeSnapshot(
+  static HeapSnapshot* TakeSnapshot(
       String* name,
+      int type,
       v8::ActivityControl* control,
       v8::HeapProfiler::ObjectNameResolver* resolver);
 
-  void StartHeapObjectsTracking();
-  void StopHeapObjectsTracking();
-  SnapshotObjectId PushHeapObjectsStats(OutputStream* stream);
-  int GetSnapshotsCount();
-  HeapSnapshot* GetSnapshot(int index);
-  HeapSnapshot* FindSnapshot(unsigned uid);
-  SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj);
-  void DeleteAllSnapshots();
+  static void StartHeapObjectsTracking();
+  static void StopHeapObjectsTracking();
+  static SnapshotObjectId PushHeapObjectsStats(OutputStream* stream);
+  static int GetSnapshotsCount();
+  static HeapSnapshot* GetSnapshot(int index);
+  static HeapSnapshot* FindSnapshot(unsigned uid);
+  static SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj);
+  static void DeleteAllSnapshots();
 
   void ObjectMoveEvent(Address from, Address to);
 
   void DefineWrapperClass(
       uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback);
 
   v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id,
                                                       Object** wrapper);
   INLINE(bool is_profiling()) {
     return snapshots_->is_tracking_objects();
   }
 
  private:
+  explicit HeapProfiler(Heap* heap);
+  ~HeapProfiler();
+  HeapSnapshot* TakeSnapshotImpl(
+      const char* name,
+      int type,
+      v8::ActivityControl* control,
+      v8::HeapProfiler::ObjectNameResolver* resolver);
+  HeapSnapshot* TakeSnapshotImpl(
+      String* name,
+      int type,
+      v8::ActivityControl* control,
+      v8::HeapProfiler::ObjectNameResolver* resolver);
+  void ResetSnapshots();
+
+  void StartHeapObjectsTrackingImpl();
+  void StopHeapObjectsTrackingImpl();
+  SnapshotObjectId PushHeapObjectsStatsImpl(OutputStream* stream);
+
   Heap* heap() const { return snapshots_->heap(); }
 
   HeapSnapshotsCollection* snapshots_;
   unsigned next_snapshot_uid_;
   List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_PROFILER_H_