Add WebContents source to methods in WebContentsDelegate

apps/custom_launcher_page_contents.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 "apps/custom_launcher_page_contents.h"
 
 #include <string>
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
@@ skipping 69 matching lines @@
                                 initial_pos,
                                 user_gesture,
                                 was_blocked);
 }
 
 bool CustomLauncherPageContents::IsPopupOrPanel(
     const content::WebContents* source) const {
   return true;
 }
 
-bool CustomLauncherPageContents::ShouldSuppressDialogs() {
+bool CustomLauncherPageContents::ShouldSuppressDialogs(
+    content::WebContents* source) {
   return true;
 }
 
 bool CustomLauncherPageContents::PreHandleGestureEvent(
     content::WebContents* source,
     const blink::WebGestureEvent& event) {
   return extensions::AppWebContentsHelper::ShouldSuppressGestureEvent(event);
 }
 
 content::ColorChooser* CustomLauncherPageContents::OpenColorChooser(
@@ skipping 53 matching lines @@
   return web_contents();
 }
 
 void CustomLauncherPageContents::OnRequest(
     const ExtensionHostMsg_Request_Params& params) {
   extension_function_dispatcher_->Dispatch(params,
                                            web_contents_->GetRenderViewHost());
 }
 
 }  // namespace apps