Dispatch push event to worker from PushServiceImpl#OnMessage.

chrome/browser/services/gcm/push_messaging_service_impl.h

Index: chrome/browser/services/gcm/push_messaging_service_impl.h
diff --git a/chrome/browser/services/gcm/push_messaging_service_impl.h b/chrome/browser/services/gcm/push_messaging_service_impl.h
index aea8a08edf8321f1cd0a9d2d449892652b891164..b507f78436d4377cea6d4a2a61f4092a82f326ef 100644
--- a/chrome/browser/services/gcm/push_messaging_service_impl.h
+++ b/chrome/browser/services/gcm/push_messaging_service_impl.h
@@ -6,17 +6,26 @@
 #define CHROME_BROWSER_SERVICES_GCM_PUSH_MESSAGING_SERVICE_IMPL_H_
 
 #include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "components/gcm_driver/gcm_app_handler.h"
 #include "components/gcm_driver/gcm_client.h"
+#include "content/common/service_worker/service_worker_status_code.h"
 #include "content/public/browser/push_messaging_service.h"
 
+using content::ServiceWorkerStatusCode;
+
 class Profile;
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
+namespace content {
+struct PushMessagingApplicationId;
+class ServiceWorkerContextWrapper;
+}
+
 namespace gcm {
 
 class GCMProfileService;
@@ -56,6 +65,11 @@ class PushMessagingServiceImpl : public content::PushMessagingService,
       const content::PushMessagingService::RegisterCallback& callback,
       const std::string& registration_id,
       GCMClient::Result result);
+  void SendMessage(
+      const content::PushMessagingApplicationId& id,
+      const std::string& data,
+      scoped_refptr<content::ServiceWorkerContextWrapper> worker_context);
+  void SendMessageCallback(content::ServiceWorkerStatusCode status);
 
   GCMProfileService* gcm_profile_service_;  // It owns us.