Update the PushEvent to have a nullable PushMessageData

content/public/browser/browser_context.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/callback_forward.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/supports_user_data.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/zoom_level_delegate.h"
+#include "content/public/common/push_event_payload.h"
 #include "content/public/common/push_messaging_status.h"
 
 class GURL;
 
 namespace base {
 class FilePath;
 class Time;
 }
 
 namespace storage {
@@ skipping 74 matching lines @@
                                    int64_t size,
                                    const base::Time& expected_modification_time,
                                    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_t service_worker_registration_id,
-      const std::string& data,
+      const content::PushEventPayload& payload,
       const base::Callback<void(PushDeliveryStatus)>& callback);
 
   static void NotifyWillBeDestroyed(BrowserContext* browser_context);
 
   // 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
   // thread before they use BrowserContext, they should call this to make sure
   // that the ResourceContext is ready.
   static void EnsureResourceContextInitialized(BrowserContext* browser_context);
@@ skipping 73 matching lines @@
   virtual PermissionManager* GetPermissionManager() = 0;
 
   // Returns the BackgroundSyncController associated with that context if any,
   // nullptr otherwise.
   virtual BackgroundSyncController* GetBackgroundSyncController() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_