Enable auto-refreshing of the gcm-internals page whenever a GCM activity is recorded.

chrome/browser/services/gcm/gcm_service.cc

Index: chrome/browser/services/gcm/gcm_service.cc
diff --git a/chrome/browser/services/gcm/gcm_service.cc b/chrome/browser/services/gcm/gcm_service.cc
index 0b5c74dc601e0143b80e6e65927317069ebc740f..59f18ef3062b5e68be269b5f9b77ff1a8743d3a8 100644
--- a/chrome/browser/services/gcm/gcm_service.cc
+++ b/chrome/browser/services/gcm/gcm_service.cc
@@ -146,6 +146,7 @@ class GCMService::IOWorker : public GCMClient::Delegate {
       const std::string& app_id,
       const GCMClient::SendErrorDetails& send_error_details) OVERRIDE;
   virtual void OnGCMReady() OVERRIDE;
+  virtual void OnActivityRecorded() OVERRIDE;
 
   // Called on IO thread.
   void Initialize(scoped_ptr<GCMClientFactory> gcm_client_factory,
@@ -296,6 +297,13 @@ void GCMService::IOWorker::OnGCMReady() {
                                               service_));
 }
 
+void GCMService::IOWorker::OnActivityRecorded() {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
+  // When an activity is recorded, get all the stats and refresh the UI of
+  // gcm-internals page.
+  GetGCMStatistics(false);
+}
+
 void GCMService::IOWorker::Load(const base::WeakPtr<GCMService>& service) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));