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

ash/accelerators/focus_manager_factory.h

Index: ash/accelerators/focus_manager_factory.h
diff --git a/ash/accelerators/focus_manager_factory.h b/ash/accelerators/focus_manager_factory.h
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index 0000000000000000000000000000000000000000..8469ff9692948f2d206386c933f86bb34cb117a9
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+++ b/ash/accelerators/focus_manager_factory.h
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+// 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.
+
+#ifndef ASH_ACCELERATORS_FOCUS_MANAGER_FACTORY_H_
+#define ASH_ACCELERATORS_FOCUS_MANAGER_FACTORY_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "ui/views/focus/focus_manager_delegate.h"
+#include "ui/views/focus/focus_manager_factory.h"
+
+namespace ash {
+
+// A factory class for creating a custom views::FocusManager object which
+// supports Ash shortcuts.
+class AshFocusManagerFactory : public views::FocusManagerFactory {
+ public:
+  AshFocusManagerFactory();
+  virtual ~AshFocusManagerFactory();
+
+ protected:
+  // views::FocusManagerFactory overrides:
+  virtual views::FocusManager* CreateFocusManager(
+      views::Widget* widget) OVERRIDE;
+
+ private:
+  class Delegate : public views::FocusManagerDelegate {
+   public:
+    // views::FocusManagerDelegate overrides:
+    virtual bool ProcessAccelerator(
+        const ui::Accelerator& accelerator) OVERRIDE;
+    virtual ui::AcceleratorTarget* GetCurrentTargetForAccelerator(
+        const ui::Accelerator& accelerator) const OVERRIDE;
+  };
+
+  DISALLOW_COPY_AND_ASSIGN(AshFocusManagerFactory);
+};
+
+}  // namespace ash
+
+#endif  // ASH_ACCELERATORS_FOCUS_MANAGER_FACTORY_H_