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

ash/accelerators/focus_manager_factory.cc

Index: ash/accelerators/focus_manager_factory.cc
diff --git a/ash/accelerators/focus_manager_factory.cc b/ash/accelerators/focus_manager_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..76dcd9f6933a7bae6cafe6b68ccf15c4bfe0aa8e
--- /dev/null
+++ b/ash/accelerators/focus_manager_factory.cc
@@ -0,0 +1,40 @@
+// 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 "ash/accelerators/focus_manager_factory.h"
+
+#include "ash/accelerators/accelerator_controller.h"
+#include "ash/shell.h"
+#include "ui/views/focus/focus_manager.h"
+
+namespace ash {
+
+AshFocusManagerFactory::AshFocusManagerFactory() {}
+AshFocusManagerFactory::~AshFocusManagerFactory() {}
+
+views::FocusManager* AshFocusManagerFactory::CreateFocusManager(
+    views::Widget* widget) {
+  return new views::FocusManager(widget, new Delegate);
+}
+
+bool AshFocusManagerFactory::Delegate::ProcessAccelerator(
+    const ui::Accelerator& accelerator) {
+  AcceleratorController* controller =
+      Shell::GetInstance()->accelerator_controller();
+  if (controller)
+    return controller->Process(accelerator);
+  return false;
+}
+
+ui::AcceleratorTarget*
+AshFocusManagerFactory::Delegate::GetCurrentTargetForAccelerator(
+    const ui::Accelerator& accelerator) const {
+  AcceleratorController* controller =
+      Shell::GetInstance()->accelerator_controller();
+  if (controller && controller->IsRegistered(accelerator))
+    return controller;
+  return NULL;
+}
+
+}  // namespace ash