Add stubs for brailleDisplayPrivate extension API.

chrome/browser/extensions/api/braille_display_private/braille_display_private_api.h

+// Copyright (c) 2013 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 CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_DISPLAY_PRIVATE_API_H_
+#define CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_DISPLAY_PRIVATE_API_H_
+
+#include "chrome/browser/extensions/api/api_function.h"
+#include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
+#include "chrome/common/extensions/api/braille_display_private.h"
+
+namespace extensions {
+
+// Implementation of the chrome.brailleDisplayPrivate API.
+class BrailleDisplayPrivateAPI : public ProfileKeyedAPI {
+ public:
+  explicit BrailleDisplayPrivateAPI(Profile* profile);
+  virtual ~BrailleDisplayPrivateAPI();
+
+  // ProfileKeyedService implementation.
+  virtual void Shutdown() OVERRIDE;
+
+  // ProfileKeyedAPI implementation.
+  static ProfileKeyedAPIFactory<BrailleDisplayPrivateAPI>* GetFactoryInstance();
+
+ private:
+  friend class ProfileKeyedAPIFactory<BrailleDisplayPrivateAPI>;
+
+  Profile* profile_;
+
+  // ProfileKeyedAPI implementation.
+  static const char* service_name() {
+    return "BrailleDisplayPrivateAPI";
+  }
+  static const bool kServiceIsNULLWhileTesting = true;

[David Tseng, 2013/09/03 23:57:17]

Add a small comment to explain this.

+};
+
+namespace api {

[David Tseng, 2013/09/03 23:57:17]

nit: I think you want a blank line here.

+class BrailleDisplayPrivateGetDisplayStateFunction : public AsyncApiFunction {
+  DECLARE_EXTENSION_FUNCTION("brailleDisplayPrivate.getDisplayState",
+                             BRAILLEDISPLAYPRIVATE_GETDISPLAYSTATE)
+ protected:
+  virtual ~BrailleDisplayPrivateGetDisplayStateFunction() {}
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+};
+
+class BrailleDisplayPrivateWriteDotsFunction : public AsyncApiFunction {
+  DECLARE_EXTENSION_FUNCTION("brailleDisplayPrivate.writeDots",
+                             BRAILLEDISPLAYPRIVATE_WRITEDOTS);
+ public:
+  BrailleDisplayPrivateWriteDotsFunction();
+
+ protected:
+  virtual ~BrailleDisplayPrivateWriteDotsFunction();
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+
+ private:
+  scoped_ptr<braille_display_private::WriteDots::Params> params_;
+};
+
+}  // namespace api
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_DISPLAY_PRIVATE_API_H_