Refactor 3 PPB_Flash functions to the new resource model.

content/renderer/pepper/pepper_flash_host.h

-// 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.
-
-#ifndef CONTENT_RENDERER_PEPPER_PEPPER_FLASH_HOST_H_
-#define CONTENT_RENDERER_PEPPER_PEPPER_FLASH_HOST_H_
-
-#include "base/basictypes.h"
-#include "ppapi/host/host_message_context.h"
-#include "ppapi/host/resource_host.h"
-
-namespace content {
-
-class RendererPpapiHost;
-
-class PepperFlashHost
-    : public ppapi::host::ResourceHost {
- public:
-  PepperFlashHost(RendererPpapiHost* host,
-                  PP_Instance instance,
-                  PP_Resource resource);
-  virtual ~PepperFlashHost();
-
-  virtual int32_t OnResourceMessageReceived(
-      const IPC::Message& msg,
-      ppapi::host::HostMessageContext* context) OVERRIDE;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(PepperFlashHost);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_PEPPER_PEPPER_FLASH_HOST_H_