[tracing] Use trace event profiling for heap profiling

gin/v8_platform.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gin/public/v8_platform.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/sys_info.h"
 #include "base/threading/worker_pool.h"
+#include "base/trace_event/heap_profiler_allocation_context_tracker.h"
 #include "base/trace_event/trace_event.h"
 #include "gin/per_isolate_data.h"
 
 namespace gin {
 
 namespace {
 
 base::LazyInstance<V8Platform>::Leaky g_v8_platform = LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
@@ skipping 88 matching lines @@
 
 void V8Platform::UpdateTraceEventDuration(const uint8_t* category_enabled_flag,
                                           const char* name,
                                           uint64_t handle) {
   base::trace_event::TraceEventHandle traceEventHandle;
   memcpy(&traceEventHandle, &handle, sizeof(handle));
   TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_enabled_flag, name,
                                               traceEventHandle);
 }
 
+void V8Platform::PushTracingPseudoStackFrame(const char* stack_frame) {
+  base::trace_event::AllocationContextTracker::GetInstanceForCurrentThread()
+      ->PushPseudoStackFrame(stack_frame);
+}
+
+void V8Platform::PopTracingPseudoStackFrame(const char* stack_frame) {
+  base::trace_event::AllocationContextTracker::GetInstanceForCurrentThread()
+      ->PopPseudoStackFrame(stack_frame);
+}
+
 }  // namespace gin