Skeleton GCMAppHandler for Push API

components/gcm_driver/gcm_driver_desktop.cc

Index: components/gcm_driver/gcm_driver_desktop.cc
diff --git a/components/gcm_driver/gcm_driver_desktop.cc b/components/gcm_driver/gcm_driver_desktop.cc
index 9f6a7c2c24b7996428458929cd64b6f2869ad4ba..a1d1a77a2d6d80f8f56e39beb354c83fa3bbf6a0 100644
--- a/components/gcm_driver/gcm_driver_desktop.cc
+++ b/components/gcm_driver/gcm_driver_desktop.cc
@@ -394,7 +394,25 @@ void GCMDriverDesktop::RemoveAppHandler(const std::string& app_id) {
   GCMDriver::RemoveAppHandler(app_id);
 
   // Stops the GCM service when no app intends to consume it.
-  if (app_handlers().empty())
+  if (app_handlers().empty() && wildcard_app_handlers().empty())
+    Stop();
+}
+
+void GCMDriverDesktop::AddWildcardAppHandler(GCMWildcardAppHandler* handler) {
+  DCHECK(ui_thread_->RunsTasksOnCurrentThread());
+  GCMDriver::AddWildcardAppHandler(handler);
+
+   // Ensures that the GCM service is started when there is an interest.
+  EnsureStarted();
+}
+
+void GCMDriverDesktop::RemoveWildcardAppHandler(
+    GCMWildcardAppHandler* handler) {
+  DCHECK(ui_thread_->RunsTasksOnCurrentThread());
+  GCMDriver::RemoveWildcardAppHandler(handler);
+
+  // Stops the GCM service when no app intends to consume it.
+  if (app_handlers().empty() && wildcard_app_handlers().empty())
     Stop();
 }
 
@@ -567,7 +585,7 @@ GCMClient::Result GCMDriverDesktop::EnsureStarted() {
     return GCMClient::GCM_DISABLED;
 
   // Have any app requested the service?
-  if (app_handlers().empty())
+  if (app_handlers().empty() && wildcard_app_handlers().empty())
     return GCMClient::UNKNOWN_ERROR;
 
   // Is the user signed in?