Use HeapProfiler::FindObjectById when searching for node

Source/core/inspector/InspectorHeapProfilerAgent.cpp

 /*
  * Copyright (C) 2013 Google Inc. 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
@@ skipping 199 matching lines @@
 }
 
 void InspectorHeapProfilerAgent::enable(ErrorString*)
 {
     m_state->setBoolean(HeapProfilerAgentState::heapProfilerEnabled, true);
 }
 
 void InspectorHeapProfilerAgent::disable(ErrorString* error)
 {
     stopTrackingHeapObjectsInternal();
+    ScriptProfiler::clearHeapObjectIds();
     m_state->setBoolean(HeapProfilerAgentState::heapProfilerEnabled, false);
 }
 
 void InspectorHeapProfilerAgent::getHeapSnapshot(ErrorString* errorString, int rawUid)
 {
     class OutputStream : public ScriptHeapSnapshot::OutputStream {
     public:
         OutputStream(InspectorFrontend::HeapProfiler* frontend, unsigned uid)
             : m_frontend(frontend), m_uid(uid) { }
         void Write(const String& chunk) { m_frontend->addHeapSnapshotChunk(m_uid, chunk); }
@@ skipping 90 matching lines @@
     if (value.hasNoValue() || value.isUndefined()) {
         *errorString = "Object with given id not found";
         return;
     }
     unsigned id = ScriptProfiler::getHeapObjectId(value);
     *heapSnapshotObjectId = String::number(id);
 }
 
 } // namespace WebCore