Initialize StatisticsRecorder in Child Process to hold

content/common/child_process.cc

Index: content/common/child_process.cc
===================================================================
--- content/common/child_process.cc	(revision 147145)
+++ content/common/child_process.cc	(working copy)
@@ -9,6 +9,7 @@
 #endif
 
 #include "base/message_loop.h"
+#include "base/metrics/statistics_recorder.h"
 #include "base/process_util.h"
 #include "base/string_number_conversions.h"
 #include "base/threading/thread.h"
@@ -32,6 +33,12 @@
   DCHECK(!child_process_);
   child_process_ = this;
 
+  // Initialize histogram statistics gathering system.
+  // Don't create StatisticsRecorder in the single process mode.
+  if (!base::StatisticsRecorder::IsActive()) {
+    statistics_recorder_.reset(new base::StatisticsRecorder());
+  }
+
   // We can't recover from failing to start the IO thread.
   CHECK(io_thread_.StartWithOptions(
             base::Thread::Options(MessageLoop::TYPE_IO, 0)));
@@ -50,6 +57,8 @@
   // destruction code might depend on it.
   main_thread_.reset();
 
+  statistics_recorder_.reset();

[jam, 2012/07/18 01:22:06]

nit: is this necessary? if not, leave it out

[ramant (doing other things), 2012/07/18 03:20:32]

Done.

+
   child_process_ = NULL;
 }