Returning error when NotificationConversionHelper::NotificationBitmapToGfxImage() get failed in not…

chrome/browser/notifications/notification_conversion_helper.h

 // Copyright 2014 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 CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_CONVERSION_HELPER_H_
 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_CONVERSION_HELPER_H_
 
 #include "chrome/browser/notifications/notification.h"
 #include "ui/message_center/notification_types.h"
 
@@ skipping 24 matching lines @@
   // extensions::api::notifications::NotificationBitmap type (RGBA).
   static void GfxImageToNotificationBitmap(
       const gfx::Image* gfx_image,
       extensions::api::notifications::NotificationBitmap* return_image_args);
 
   // Converts an extensions::api::notifications::NotificationBitmap type object
   // with width, height, and data in RGBA format into an gfx::Image (ARGB).
   static bool NotificationBitmapToGfxImage(
       float max_scale,
       const gfx::Size& target_size_dips,
-      extensions::api::notifications::NotificationBitmap* notification_bitmap,
+      const extensions::api::notifications::NotificationBitmap&
+          notification_bitmap,
       gfx::Image* return_image);
 
  private:
   // Conversts message_center::NotificationType to string type used to convert
   // to extensions::api::notifications::TemplateType
   static std::string MapTypeToString(message_center::NotificationType type);
 };
 
 #endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_CONVERSION_HELPER_H_