API proposal for chrome.app.window to intercept all keys.

chrome/browser/ui/views/apps/keyboard_hook_handler.h

Index: chrome/browser/ui/views/apps/keyboard_hook_handler.h
diff --git a/chrome/browser/ui/views/apps/keyboard_hook_handler.h b/chrome/browser/ui/views/apps/keyboard_hook_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..087891a2cc6a52bd1e18185e1acfb8af18a2ebd9
--- /dev/null
+++ b/chrome/browser/ui/views/apps/keyboard_hook_handler.h
@@ -0,0 +1,23 @@
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.

[benwells, 2014/11/21 00:52:01]

Nit: no (c)

[Sriram, 2014/11/21 05:35:21]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_UI_VIEWS_APPS_KEYBOARD_HOOK_HANDLER_H_
+#define CHROME_BROWSER_UI_VIEWS_APPS_KEYBOARD_HOOK_HANDLER_H_
+
+#include "ui/views/widget/widget.h"
+
+// Interface to control keyboard hook on different platform.
+class KeyboardHookHandler {
+public:
+  // Request all keyboard events to be routed to the given window.
+  void Register(views::Widget* widget);
+
+  // Release the request for all keyboard events.
+  void Deregister(views::Widget* widget);
+
+  // Implemented in platform specific code.
+  static KeyboardHookHandler* GetInstance();
+};
+
+#endif // CHROME_BROWSER_UI_VIEWS_APPS_KEYBOARD_HOOK_HANDLER_H_