Show gpu process stats in about:tcmalloc

chrome/browser/metrics/tracking_synchronizer.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 "chrome/browser/metrics/tracking_synchronizer.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/process_util.h"
 #include "base/threading/thread.h"
 #include "base/tracked_objects.h"
 #include "chrome/browser/metrics/tracking_synchronizer_observer.h"
+#include "chrome/browser/browser_about_handler.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/profiler_controller.h"
 
 using base::TimeTicks;
 using content::BrowserThread;
 
 namespace {
 
 // Negative numbers are never used as sequence numbers.  We explicitly pick a
 // negative number that is "so negative" that even when we add one (as is done
@@ skipping 209 matching lines @@
 
 void TrackingSynchronizer::OnProfilerDataCollected(
     int sequence_number,
     const tracked_objects::ProcessDataSnapshot& profiler_data,
     content::ProcessType process_type) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DecrementPendingProcessesAndSendData(sequence_number, profiler_data,
                                        process_type);
 }
 
+#if defined(USE_TCMALLOC)
+void TrackingSynchronizer::OnTcmallocStatsCollected(
+      base::ProcessId pid,
+      content::ProcessType process_type,
+      const std::string& output) {
+  AboutTcmallocOutputs::GetInstance()->OnStatsForChildProcess(
+      pid, process_type, output);
+}
+#endif
+
 int TrackingSynchronizer::RegisterAndNotifyAllProcesses(
     const base::WeakPtr<TrackingSynchronizerObserver>& callback_object) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   int sequence_number = GetNextAvailableSequenceNumber();
 
   RequestContext* request =
       RequestContext::Register(sequence_number, callback_object);
 
   // Increment pending process count for sending browser's profiler data.
@@ skipping 36 matching lines @@
 
   ++last_used_sequence_number_;
 
   // Watch out for wrapping to a negative number.
   if (last_used_sequence_number_ < 0)
     last_used_sequence_number_ = 1;
   return last_used_sequence_number_;
 }
 
 }  // namespace chrome_browser_metrics