Request the icon of a Web Notification in the renderer process.

chrome/browser/notifications/desktop_notification_service.cc

Index: chrome/browser/notifications/desktop_notification_service.cc
diff --git a/chrome/browser/notifications/desktop_notification_service.cc b/chrome/browser/notifications/desktop_notification_service.cc
index eb6d72f6b7a30377eba03195accebb1370a8bd0e..2af843ec0a8b9a99af0b8566c9860baae14cb081 100644
--- a/chrome/browser/notifications/desktop_notification_service.cc
+++ b/chrome/browser/notifications/desktop_notification_service.cc
@@ -163,9 +163,14 @@ void DesktopNotificationService::ShowDesktopNotification(
 
   base::string16 display_source = DisplayNameForOriginInProcessId(
       origin, render_frame_host->GetProcess()->GetID());
-  Notification notification(origin, params.icon_url, params.title,
-      params.body, params.direction, display_source, params.replace_id,
-      proxy);
+
+  // 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, params.title, params.body,
+      gfx::Image::CreateFrom1xBitmap(params.icon),
+      display_source, params.replace_id, proxy);
 
   // The webkit notification doesn't timeout.
   notification.set_never_timeout(true);