Dispatch push event to worker from PushServiceImpl#OnMessage.

content/public/browser/browser_context.h

Index: content/public/browser/browser_context.h
diff --git a/content/public/browser/browser_context.h b/content/public/browser/browser_context.h
index 1e2564fddc7cece66b82cd70cc43f1a81aa3fbbf..147eab32d612742989f1c7045be97ff0ef926bd6 100644
--- a/content/public/browser/browser_context.h
+++ b/content/public/browser/browser_context.h
@@ -10,6 +10,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/supports_user_data.h"
 #include "content/common/content_export.h"
+#include "content/public/common/push_messaging_status.h"
 
 class GURL;
 
@@ -86,6 +87,15 @@ class CONTENT_EXPORT BrowserContext : public base::SupportsUserData {
                                      const char* data, size_t length,
                                      const BlobCallback& callback);
 
+  // Delivers a push message with |data| to the Service Worker identified by
+  // |origin| and |service_worker_registration_id|.
+  static void DeliverPushMessage(
+      BrowserContext* browser_context,
+      const GURL& origin,
+      int64 service_worker_registration_id,
+      const std::string& data,
+      const base::Callback<void(PushMessagingStatus)>& callback);
+
   // Ensures that the corresponding ResourceContext is initialized. Normally the
   // BrowserContext initializs the corresponding getters when its objects are
   // created, but if the embedder wants to pass the ResourceContext to another