Initial support for Renderer Side Histograms...

chrome/renderer/renderer_main.cc

 // Copyright (c) 2006-2008 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 "base/command_line.h"
+#include "base/histogram.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/platform_thread.h"
 #include "base/scoped_nsautorelease_pool.h"
 #include "base/string_util.h"
 #include "base/system_monitor.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_counters.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/l10n_util.h"
@@ skipping 66 matching lines @@
   // Initialize the SystemMonitor
   base::SystemMonitor::Start();
 
   platform.PlatformInitialize();
 
   bool no_sandbox = parsed_command_line.HasSwitch(switches::kNoSandbox);
   platform.InitSandboxTests(no_sandbox);
 
   HandleRendererErrorTestParameters(parsed_command_line);
 
+  // Initialize histogram statistics gathering system.
+  // Don't create StatisticsRecorde in the single process mode.
+  scoped_ptr<StatisticsRecorder> statistics;
+  if (!StatisticsRecorder::WasStarted()) {
+    statistics.reset(new StatisticsRecorder());
+  }
+
   {
     RenderProcess render_process;
     bool run_loop = true;
     if (!no_sandbox) {
       run_loop = platform.EnableSandbox();
     }
 
     platform.RunSandboxTests();
 
     startup_timer.Stop();  // End of Startup Time Measurement.
 
     if (run_loop) {
       // Load the accelerator table from the browser executable and tell the
       // message loop to use it when translating messages.
       if (pool) pool->Recycle();
       MessageLoop::current()->Run();
     }
   }
   platform.PlatformUninitialize();
   return 0;
 }