[NaCl SDK] Cleanup examples.

native_client_sdk/src/examples/api/gamepad/gamepad.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 EXAMPLES_GAMEPAD_GAMEPAD_H_
-#define EXAMPLES_GAMEPAD_GAMEPAD_H_
-
-#include <map>
-#include <vector>
-#include "ppapi/c/ppb_gamepad.h"
-#include "ppapi/cpp/graphics_2d.h"
-#include "ppapi/cpp/image_data.h"
-#include "ppapi/cpp/instance.h"
-#include "ppapi/cpp/rect.h"
-#include "ppapi/cpp/size.h"
-
-namespace gamepad {
-
-// The Instance class.  One of these exists for each instance of your NaCl
-// module on the web page.  The browser will ask the Module object to create
-// a new Instance for each occurrence of the <embed> tag that has these
-// attributes:
-//     type="application/x-nacl"
-//     nacl="pi_generator.nmf"
-class Gamepad : public pp::Instance {
- public:
-  explicit Gamepad(PP_Instance instance);
-  virtual ~Gamepad();
-
-  // Update the graphics context to the new size, and regenerate |pixel_buffer_|
-  // to fit the new size as well.
-  virtual void DidChangeView(const pp::View& view);
-
-  // Flushes its contents of |pixel_buffer_| to the 2D graphics context.
-  void Paint();
-
-  bool quit() const { return quit_; }
-
-  int width() const {
-    return pixel_buffer_ ? pixel_buffer_->size().width() : 0;
-  }
-  int height() const {
-    return pixel_buffer_ ? pixel_buffer_->size().height() : 0;
-  }
-
-  // Indicate whether a flush is pending.  This can only be called from the
-  // main thread; it is not thread safe.
-  bool flush_pending() const { return flush_pending_; }
-  void set_flush_pending(bool flag) { flush_pending_ = flag; }
-
- private:
-  // Create and initialize the 2D context used for drawing.
-  void CreateContext(const pp::Size& size);
-  // Destroy the 2D drawing context.
-  void DestroyContext();
-  // Push the pixels to the browser, then attempt to flush the 2D context.  If
-  // there is a pending flush on the 2D context, then update the pixels only
-  // and do not flush.
-  void FlushPixelBuffer();
-
-  bool IsContextValid() const { return graphics_2d_context_ != NULL; }
-
-  pp::Graphics2D* graphics_2d_context_;
-  pp::ImageData* pixel_buffer_;
-  const PPB_Gamepad* gamepad_;
-  bool flush_pending_;
-  bool quit_;
-};
-
-}  // namespace gamepad
-
-#endif  // EXAMPLES_GAMEPAD_GAMEPAD_H_