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google_apis/gcm/gcm_client_impl.cc

Index: google_apis/gcm/gcm_client_impl.cc
diff --git a/google_apis/gcm/gcm_client_impl.cc b/google_apis/gcm/gcm_client_impl.cc
index 46b246d3a4baa06ae65b422acd2cf8382f3d73f6..9752ba379b3c5a9ad6664e114c4831f94f9a8bee 100644
--- a/google_apis/gcm/gcm_client_impl.cc
+++ b/google_apis/gcm/gcm_client_impl.cc
@@ -413,6 +413,33 @@ void GCMClientImpl::Send(const std::string& app_id,
   mcs_client_->SendMessage(mcs_message);
 }
 
+std::string GCMClientImpl::GetStateString(gcm::GCMClientImpl::State state) {
+  switch(state) {
+    case GCMClientImpl::INITIALIZED:
+      return "INITIALIZED";
+    case GCMClientImpl::UNINITIALIZED:
+      return "UNINITIALIZED";
+    case GCMClientImpl::LOADING:
+      return "LOADING";
+    case GCMClientImpl::INITIAL_DEVICE_CHECKIN:
+      return "INITIAL_DEVICE_CHECKIN";
+    case GCMClientImpl::READY:
+      return "READY";
+  }
+  return std::string();
+}
+
+GCMClient::GCMStatistics GCMClientImpl::GetStatistics() const {
+  GCMClient::GCMStatistics stats;
+  stats.gcm_client_state = GCMClientImpl::GetStateString(state_);
+  stats.connection_client_created = (mcs_client_.get() != NULL);
+  if (mcs_client_.get()) {
+    stats.connection_state = MCSClient::GetStateString(mcs_client_->state());
+    // TODO(juyik): add more statistics such as message metadata list, etc.
+  }
+  return stats;
+}
+
 void GCMClientImpl::OnMessageReceivedFromMCS(const gcm::MCSMessage& message) {
   switch (message.tag()) {
     case kLoginResponseTag: