Implement support for silent notifications.

chrome/browser/notifications/platform_notification_service_impl.cc

 // 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.
 
 #include "chrome/browser/notifications/platform_notification_service_impl.h"
 
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/desktop_notification_profile_util.h"
@@ skipping 253 matching lines @@
 
   // TODO(peter): Icons for Web Notifications are currently always requested for
   // 1x scale, whereas the displays on which they can be displayed can have a
   // different pixel density. Be smarter about this when the API gets updated
   // with a way for developers to specify images of different resolutions.
   Notification notification(origin, notification_data.title,
       notification_data.body, gfx::Image::CreateFrom1xBitmap(icon),
       display_source, notification_data.tag, delegate);
 
   notification.set_context_message(display_source);
+  notification.set_silent(notification_data.silent);
 
   // Web Notifications do not timeout.
   notification.set_never_timeout(true);
 
   return notification;
 }
 
 NotificationUIManager*
 PlatformNotificationServiceImpl::GetNotificationUIManager() const {
   if (notification_ui_manager_for_tests_)
@@ skipping 47 matching lines @@
       formatted_origin.push_back(':');
       formatted_origin.append(base::UTF8ToUTF16(origin.port()));
     }
     return formatted_origin;
   }
 
   // TODO(dewittj): Once file:// URLs are passed in to the origin
   // GURL here, begin returning the path as the display name.
   return net::FormatUrl(origin, languages);
 }