Add a Content API around BrowserChildProcessHost, similar to what was done with ChildProcessHost....

content/browser/plugin_process_host.h

 // Copyright (c) 2011 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_PLUGIN_PROCESS_HOST_H_
 #define CONTENT_BROWSER_PLUGIN_PROCESS_HOST_H_
 #pragma once
 
 #include "build/build_config.h"
 
 #include <list>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
-#include "content/browser/browser_child_process_host.h"
 #include "content/common/content_export.h"
+#include "content/public/browser/browser_child_process_host_delegate.h"
+#include "content/public/browser/browser_child_process_host_iterator.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "webkit/plugins/webplugininfo.h"
 #include "ui/gfx/native_widget_types.h"
 
+class BrowserChildProcessHost;
+
 namespace content {
 class ResourceContext;
 }
 
 namespace gfx {
 class Rect;
 }
 
 namespace IPC {
 struct ChannelHandle;
 }
 
 // Represents the browser side of the browser <--> plugin communication
 // channel.  Different plugins run in their own process, but multiple instances
 // of the same plugin run in the same process.  There will be one
 // PluginProcessHost per plugin process, matched with a corresponding
 // PluginProcess running in the plugin process.  The browser is responsible for
 // starting the plugin process when a plugin is created that doesn't already
 // have a process.  After that, most of the communication is directly between
 // the renderer and plugin processes.
-class CONTENT_EXPORT PluginProcessHost : public BrowserChildProcessHost {
+class CONTENT_EXPORT PluginProcessHost
+    : public content::BrowserChildProcessHostDelegate,
+      public IPC::Message::Sender {
  public:
   class Client {
    public:
     // Returns an opaque unique identifier for the process requesting
     // the channel.
     virtual int ID() = 0;
     // Returns the resource context for the renderer requesting the channel.
     virtual const content::ResourceContext& GetResourceContext() = 0;
     virtual bool OffTheRecord() = 0;
     virtual void SetPluginInfo(const webkit::WebPluginInfo& info) = 0;
     virtual void OnFoundPluginProcessHost(PluginProcessHost* host) = 0;
     virtual void OnSentPluginChannelRequest() = 0;
     // The client should delete itself when one of these methods is called.
     virtual void OnChannelOpened(const IPC::ChannelHandle& handle) = 0;
     virtual void OnError() = 0;
 
    protected:
     virtual ~Client() {}
   };
 
   PluginProcessHost();
   virtual ~PluginProcessHost();
 
+  // IPC::Message::Sender implementation:
+  virtual bool Send(IPC::Message* message) OVERRIDE;
+
   // Initialize the new plugin process, returning true on success. This must
   // be called before the object can be used.
   bool Init(const webkit::WebPluginInfo& info);
 
   // Force the plugin process to shutdown (cleanly).
   void ForceShutdown();
 
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
   virtual void OnChannelError() OVERRIDE;
@@ skipping 84 matching lines @@
   // Tracks plugin windows currently visible.
   std::set<uint32> plugin_visible_windows_set_;
   // Tracks full screen windows currently visible.
   std::set<uint32> plugin_fullscreen_windows_set_;
   // Tracks modal windows currently visible.
   std::set<uint32> plugin_modal_windows_set_;
   // Tracks the current visibility of the cursor.
   bool plugin_cursor_visible_;
 #endif
 
+  scoped_ptr<BrowserChildProcessHost> process_;
+
   DISALLOW_COPY_AND_ASSIGN(PluginProcessHost);
 };
 
+class PluginProcessHostIterator
+    : public content::BrowserChildProcessHostTypeIterator<PluginProcessHost> {
+ public:
+  PluginProcessHostIterator()
+      : content::BrowserChildProcessHostTypeIterator<PluginProcessHost>(
+          content::PROCESS_TYPE_PLUGIN) {}
+};
+
 #endif  // CONTENT_BROWSER_PLUGIN_PROCESS_HOST_H_