Browser Plugin: browser process side changes

content/browser/browser_plugin/browser_plugin_host_helper.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_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_HOST_HELPER_H__
+#define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_HOST_HELPER_H__
+#pragma once
+
+#include <string>
+
+#include "content/public/browser/render_view_host_observer.h"
+
+namespace gfx {
+class Size;
+}
+
+namespace content {
+
+class BrowserPluginHost;
+
+// This class acts as a plumber helper for BrowserPluginHost. A lot
+// of messages coming from guests need to know the guest's RenderViewHost.
+// BrowserPluginHostHelper handles BrowserPluginHost messages and relays
+// them with their associated RenderViewHosts to BrowserPluginHost where they
+// will be handled.
+class BrowserPluginHostHelper : public RenderViewHostObserver {
+ public:
+  BrowserPluginHostHelper(BrowserPluginHost* browser_plugin_host,
+                          RenderViewHost* render_view_host);
+  virtual ~BrowserPluginHostHelper();
+
+ private:
+  void OnConnectToChannel(const IPC::ChannelHandle& channel_handle);
+  void OnNavigateGuestFromEmbedder(int container_instance_id,
+                                   long long frame_id,
+                                   const std::string& src,
+                                   const gfx::Size& size);
+  void OnResizeGuest(int width, int height);
+
+  // RenderViewHostObserver implementation.
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+  BrowserPluginHost* browser_plugin_host_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserPluginHostHelper);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_HOST_HELPER_H__
+