[tracing] Use trace event profiling for heap profiling

third_party/WebKit/Source/platform/EventTracer.cpp

 /*
  * Copyright (C) 2011 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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/EventTracer.h"
 
 #include "base/time/time.h"
+#include "base/trace_event/heap_profiler_allocation_context_tracker.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "platform/TracedValue.h"
 #include "public/platform/Platform.h"
 #include "wtf/Assertions.h"
 #include "wtf/text/StringUTF8Adaptor.h"
 #include <stdio.h>
 
 namespace blink {
 
@@ skipping 68 matching lines @@
     base::trace_event::TraceEventHandle traceEventHandle;
     memcpy(&traceEventHandle, &handle, sizeof(handle));
     TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(categoryEnabledFlag, name, traceEventHandle);
 }
 
 double EventTracer::systemTraceTime()
 {
     return (base::TimeTicks::Now() - base::TimeTicks()).InSecondsF();
 }
 
+void EventTracer::pushPseudoStackFrame(const char* stackFrame)
+{
+    base::trace_event::AllocationContextTracker::GetInstanceForCurrentThread()
+        ->PushPseudoStackFrame(stackFrame);
+}
+
+void EventTracer::popPseudoStackFrame(const char* stackFrame)
+{
+    base::trace_event::AllocationContextTracker::GetInstanceForCurrentThread()
+        ->PopPseudoStackFrame(stackFrame);
+}
+
 } // namespace blink