Suppress JavaScript dialogs when a tab puts itself into fullscreen.

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 <utility>
 
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 66 matching lines @@
                                 user_gesture,
                                 was_blocked);
 }
 
 bool CustomLauncherPageContents::IsPopupOrPanel(
     const content::WebContents* source) const {
   return true;
 }
 
 bool CustomLauncherPageContents::ShouldSuppressDialogs(
-    content::WebContents* source) {
+    content::WebContents* source,
+    bool before_unload) {
   return true;
 }
 
 bool CustomLauncherPageContents::PreHandleGestureEvent(
     content::WebContents* source,
     const blink::WebGestureEvent& event) {
   return extensions::AppWebContentsHelper::ShouldSuppressGestureEvent(event);
 }
 
 content::ColorChooser* CustomLauncherPageContents::OpenColorChooser(
@@ skipping 27 matching lines @@
 
 bool CustomLauncherPageContents::CheckMediaAccessPermission(
     content::WebContents* web_contents,
     const GURL& security_origin,
     content::MediaStreamType type) {
   DCHECK_EQ(web_contents_.get(), web_contents);
   return helper_->CheckMediaAccessPermission(security_origin, type);
 }
 
 }  // namespace apps