Add heap allocator usage to task profiler.

content/child/child_thread_impl.cc

 // Copyright (c) 2012 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 "content/child/child_thread_impl.h"
 
 #include <signal.h>
 #include <string>
 #include <utility>
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
 #include "base/debug/leak_annotations.h"
 #include "base/debug/profiler.h"
+#include "base/debug/scoped_thread_heap_usage.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/timer_slack.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/process/process.h"
 #include "base/process/process_handle.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 761 matching lines @@
 #if defined(IPC_MESSAGE_LOG_ENABLED)
 void ChildThreadImpl::OnSetIPCLoggingEnabled(bool enable) {
   if (enable)
     IPC::Logging::GetInstance()->Enable();
   else
     IPC::Logging::GetInstance()->Disable();
 }
 #endif  //  IPC_MESSAGE_LOG_ENABLED
 
 void ChildThreadImpl::OnSetProfilerStatus(ThreadData::Status status) {
+  if (status == ThreadData::PROFILING_ACTIVE &&
+      !base::debug::HeapUsageTracker::IsHeapTrackingEnabled()) {
+    base::debug::HeapUsageTracker::EnableHeapTracking();
+  }
   ThreadData::InitializeAndSetTrackingStatus(status);
 }
 
 void ChildThreadImpl::OnGetChildProfilerData(int sequence_number,
                                              int current_profiling_phase) {
   tracked_objects::ProcessDataSnapshot process_data;
   ThreadData::Snapshot(current_profiling_phase, &process_data);
 
   Send(
       new ChildProcessHostMsg_ChildProfilerData(sequence_number, process_data));
@@ skipping 57 matching lines @@
   Listener* route = router_.GetRoute(routing_id);
   if (route)
     route->OnAssociatedInterfaceRequest(name, request.PassHandle());
 }
 
 bool ChildThreadImpl::IsInBrowserProcess() const {
   return static_cast<bool>(browser_process_io_runner_);
 }
 
 }  // namespace content