Support "Report Issue" in case of no-browser windows in ChromeOS.

chrome/browser/ui/views/ash/chrome_shell_delegate.cc

 // Copyright (c) 2012 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/ui/views/ash/chrome_shell_delegate.h"
 
 #include "ash/launcher/launcher_types.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/wm/partial_screenshot_view.h"
 #include "ash/wm/window_util.h"
@@ skipping 306 matching lines @@
   return chromeos::CreateUserWallpaperDelegate();
 #else
   return NULL;
 #endif
 }
 
 aura::client::UserActionClient* ChromeShellDelegate::CreateUserActionClient() {
   return new UserActionHandler;
 }
 
+void ChromeShellDelegate::OpenFeedbackPage() {
+  chrome::OpenFeedbackDialog(GetTargetBrowser());
+}
+
 void ChromeShellDelegate::Observe(int type,
                                   const content::NotificationSource& source,
                                   const content::NotificationDetails& details) {
 #if defined(OS_CHROMEOS)
   switch (type) {
     case chrome::NOTIFICATION_LOGIN_USER_PROFILE_PREPARED:
       ash::Shell::GetInstance()->CreateLauncher();
       break;
     default:
       NOTREACHED() << "Unexpected notification " << type;
   }
 #else
   // MSVC++ warns about switch statements without any cases.
   NOTREACHED() << "Unexpected notification " << type;
 #endif
 }