Collect profiler stats from browser child processes.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
===================================================================
--- chrome/renderer/chrome_content_renderer_client.cc	(revision 112492)
+++ chrome/renderer/chrome_content_renderer_client.cc	(working copy)
@@ -51,7 +51,6 @@
 #include "chrome/renderer/prerender/prerender_helper.h"
 #include "chrome/renderer/print_web_view_helper.h"
 #include "chrome/renderer/renderer_histogram_snapshots.h"
-#include "chrome/renderer/renderer_tracking.h"
 #include "chrome/renderer/safe_browsing/malware_dom_details.h"
 #include "chrome/renderer/safe_browsing/phishing_classifier_delegate.h"
 #include "chrome/renderer/search_extension.h"
@@ -145,7 +144,6 @@
   chrome_observer_.reset(new ChromeRenderProcessObserver(this));
   extension_dispatcher_.reset(new ExtensionDispatcher());
   histogram_snapshots_.reset(new RendererHistogramSnapshots());
-  renderer_tracking_.reset(new RendererTracking());
   net_predictor_.reset(new RendererNetPredictor());
   spellcheck_.reset(new SpellCheck());
   visited_link_slave_.reset(new VisitedLinkSlave());
@@ -158,7 +156,6 @@
   thread->AddObserver(chrome_observer_.get());
   thread->AddObserver(extension_dispatcher_.get());
   thread->AddObserver(histogram_snapshots_.get());
-  thread->AddObserver(renderer_tracking_.get());
 #if defined(ENABLE_SAFE_BROWSING)
   thread->AddObserver(phishing_classifier_.get());
 #endif