Changes to upload tracked_objects data from all renderer

chrome/browser/renderer_host/chrome_render_message_filter.cc

Index: chrome/browser/renderer_host/chrome_render_message_filter.cc
===================================================================
--- chrome/browser/renderer_host/chrome_render_message_filter.cc	(revision 108557)
+++ chrome/browser/renderer_host/chrome_render_message_filter.cc	(working copy)
@@ -20,6 +20,7 @@
 #include "chrome/browser/extensions/extension_message_service.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/metrics/histogram_synchronizer.h"
+#include "chrome/browser/metrics/tracking_synchronizer.h"
 #include "chrome/browser/nacl_host/nacl_process_host.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/net/predictor.h"
@@ -37,6 +38,7 @@
 #include "content/browser/plugin_service_filter.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/resource_dispatcher_host.h"
+#include "content/common/child_process_info.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
@@ -116,6 +118,10 @@
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_DnsPrefetch, OnDnsPrefetch)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_RendererHistograms,
                         OnRendererHistograms)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_RendererTrackedData,
+                        OnRendererTrackedData)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_IsTrackingEnabled,
+                        OnIsTrackingEnabled)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ResourceTypeStats,
                         OnResourceTypeStats)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_UpdatedCacheStats,
@@ -222,6 +228,19 @@
   HistogramSynchronizer::DeserializeHistogramList(sequence_number, histograms);
 }
 
+void ChromeRenderMessageFilter::OnRendererTrackedData(
+    int sequence_number,
+    const std::string& tracked_data) {
+  // TODO(rtenneti): Add support for other process types.
+  chrome_browser_metrics::TrackingSynchronizer::DeserializeTrackingList(
+      sequence_number, tracked_data, ChildProcessInfo::RENDER_PROCESS);
+}
+
+void ChromeRenderMessageFilter::OnIsTrackingEnabled() {
+  chrome_browser_metrics::TrackingSynchronizer::IsTrackingEnabled(
+      render_process_id_);
+}
+
 void ChromeRenderMessageFilter::OnResourceTypeStats(
     const WebCache::ResourceTypeStats& stats) {
   HISTOGRAM_COUNTS("WebCoreCache.ImagesSizeKB",