Simplify allocation tracker API

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 35 matching lines @@
 
   HeapSnapshot* TakeSnapshot(
       const char* name,
       v8::ActivityControl* control,
       v8::HeapProfiler::ObjectNameResolver* resolver);
   HeapSnapshot* TakeSnapshot(
       String* name,
       v8::ActivityControl* control,
       v8::HeapProfiler::ObjectNameResolver* resolver);
 
-  void StartHeapObjectsTracking();
+  void StartHeapObjectsTracking(bool track_allocations);
   void StopHeapObjectsTracking();
 
   SnapshotObjectId PushHeapObjectsStats(OutputStream* stream);
   int GetSnapshotsCount();
   HeapSnapshot* GetSnapshot(int index);
   SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj);
   void DeleteAllSnapshots();
 
   void ObjectMoveEvent(Address from, Address to, int size);
 
   void AllocationEvent(Address addr, int size);
 
   void UpdateObjectSizeEvent(Address addr, int size);
 
   void DefineWrapperClass(
       uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback);
 
   v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id,
                                                       Object** wrapper);
   void SetRetainedObjectInfo(UniqueId id, RetainedObjectInfo* info);
 
   bool is_tracking_object_moves() const { return is_tracking_object_moves_; }
   bool is_tracking_allocations() const { return is_tracking_allocations_; }
 
-  void StartHeapAllocationsRecording();
-  void StopHeapAllocationsRecording();
-
   int FindUntrackedObjects() {
     return snapshots_->FindUntrackedObjects();
   }
 
  private:
   Heap* heap() const { return snapshots_->heap(); }
 
   HeapSnapshotsCollection* snapshots_;
   unsigned next_snapshot_uid_;
   List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_;
   bool is_tracking_allocations_;
   bool is_tracking_object_moves_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_PROFILER_H_