athena: Add support for virtual keyboard.

athena/virtual_keyboard/vk_webui_controller.h

Index: athena/virtual_keyboard/vk_webui_controller.h
diff --git a/athena/virtual_keyboard/vk_webui_controller.h b/athena/virtual_keyboard/vk_webui_controller.h
new file mode 100644
index 0000000000000000000000000000000000000000..c2c6ecc3a2b8d7bcd257e7f8951ee098101bc666
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+++ b/athena/virtual_keyboard/vk_webui_controller.h
@@ -0,0 +1,52 @@
+// Copyright 2014 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 ATHENA_VIRTUAL_KEYBOARD_VK_WEBUI_CONTROLLER_H_
+#define ATHENA_VIRTUAL_KEYBOARD_VK_WEBUI_CONTROLLER_H_
+
+#include "base/macros.h"
+#include "base/memory/singleton.h"
+#include "content/public/browser/web_ui_controller.h"
+#include "content/public/browser/web_ui_controller_factory.h"
+
+namespace athena {
+
+class VKWebUIController : public content::WebUIController {
+ public:
+  explicit VKWebUIController(content::WebUI* web_ui);
+  virtual ~VKWebUIController();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(VKWebUIController);
+};
+
+class VKWebUIControllerFactory : public content::WebUIControllerFactory {
+ public:
+  // WebUIControllerFactory:
+  virtual content::WebUI::TypeID GetWebUIType(
+      content::BrowserContext* browser_context,
+      const GURL& url) const OVERRIDE;
+  virtual bool UseWebUIForURL(content::BrowserContext* browser_context,
+                              const GURL& url) const OVERRIDE;
+  virtual bool UseWebUIBindingsForURL(content::BrowserContext* browser_context,
+                                      const GURL& url) const OVERRIDE;
+  virtual content::WebUIController* CreateWebUIControllerForURL(
+      content::WebUI* web_ui,
+      const GURL& url) const OVERRIDE;
+
+  static VKWebUIControllerFactory* GetInstance();
+
+ protected:
+  VKWebUIControllerFactory();
+  virtual ~VKWebUIControllerFactory();
+
+ private:
+  friend struct DefaultSingletonTraits<VKWebUIControllerFactory>;
+
+  DISALLOW_COPY_AND_ASSIGN(VKWebUIControllerFactory);
+};
+
+}  // namespace athena
+
+#endif  // ATHENA_VIRTUAL_KEYBOARD_VK_WEBUI_CONTROLLER_H_