Add activity recording capability to gcm internals page. User can refresh, start/stop recording, an…

chrome/browser/services/gcm/gcm_client_mock.cc

Index: chrome/browser/services/gcm/gcm_client_mock.cc
diff --git a/chrome/browser/services/gcm/gcm_client_mock.cc b/chrome/browser/services/gcm/gcm_client_mock.cc
index 3292f3fad5e71ab273d0499c38375aac274979ec..591c4bc2bbc207f06fcade1d7ef33ad5450391a4 100644
--- a/chrome/browser/services/gcm/gcm_client_mock.cc
+++ b/chrome/browser/services/gcm/gcm_client_mock.cc
@@ -102,6 +102,12 @@ void GCMClientMock::Send(const std::string& app_id,
                  message));
 }
 
+void GCMClientMock::SetRecording(bool recording) {
+}
+
+void GCMClientMock::ClearActivityLogs() {
+}
+
 GCMClient::GCMStatistics GCMClientMock::GetStatistics() const {
   return GCMClient::GCMStatistics();
 }