Let Chrome app handle Ash accelerators first if the app is launched as a window

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 97 matching lines @@
 void ChromeShellDelegate::Exit() {
   BrowserList::AttemptUserExit();
 }
 
 void ChromeShellDelegate::NewWindow(bool is_incognito) {
   Profile* profile = ProfileManager::GetDefaultProfileOrOffTheRecord();
   Browser::NewEmptyWindow(
       is_incognito ? profile->GetOffTheRecordProfile() : profile);
 }
 
+bool ChromeShellDelegate::IsBrowserWindow(const aura::Window* window) {
+  for (BrowserList::const_iterator iter = BrowserList::begin();
+       iter != BrowserList::end();
+       ++iter) {
+    Browser* browser = *iter;
+    if (browser && browser->window() &&
+        browser->window()->GetNativeHandle() == window) {
+      return true;
+    }
+  }
+  return false;
+}
+
 void ChromeShellDelegate::Search() {
   // Exit fullscreen to show omnibox.
   Browser* last_active = BrowserList::GetLastActive();
   if (last_active) {
     if (last_active->window()->IsFullscreen()) {
       last_active->ToggleFullscreenMode();
       // ToggleFullscreenMode is asynchronous, so we don't have omnibox
       // visible at this point. Wait for next event cycle which toggles
       // the visibility of omnibox before creating new tab.
       MessageLoop::current()->PostTask(
@@ skipping 102 matching lines @@
       ash::Shell::GetInstance()->CreateLauncher();
       break;
     default:
       NOTREACHED() << "Unexpected notification " << type;
   }
 #else
   // MSVC++ warns about switch statements without any cases.
   NOTREACHED() << "Unexpected notification " << type;
 #endif
 }