Split ppapi::PluginList from PepperPluginRegistry so that DRT could load pepper plugins.

webkit/plugins/ppapi/ppapi_plugin_instance.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 WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 #define WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 15 matching lines @@
 #include "ppapi/c/ppp_instance.h"
 #include "ppapi/shared_impl/function_group_base.h"
 #include "ppapi/shared_impl/instance_impl.h"
 #include "ppapi/shared_impl/ppp_instance_combined.h"
 #include "ppapi/thunk/ppb_instance_api.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCanvas.h"
 #include "ui/gfx/rect.h"
 #include "webkit/plugins/ppapi/plugin_delegate.h"
+#include "webkit/plugins/ppapi/plugin_module.h"
 
 struct PP_Var;
 struct PPP_Find_Dev;
 struct PPP_InputEvent;
 struct PPP_Instance_Private;
 struct PPP_Messaging;
 struct PPP_MouseLock_Dev;
 struct PPP_Pdf;
 struct PPP_PolicyUpdate_Dev;
 struct PPP_Selection_Dev;
@@ skipping 17 matching lines @@
 class Resource;
 }
 
 namespace webkit {
 namespace ppapi {
 
 class FullscreenContainer;
 class MessageChannel;
 class ObjectVar;
 class PluginDelegate;
-class PluginModule;
 class PluginObject;
 class PPB_Graphics2D_Impl;
 class PPB_Graphics3D_Impl;
 class PPB_ImageData_Impl;
 class PPB_Surface3D_Impl;
 class PPB_URLLoader_Impl;
 class PPB_URLRequestInfo_Impl;
 
 // Represents one time a plugin appears on one web page.
 //
@@ skipping 402 matching lines @@
 
   PP_CompletionCallback lock_mouse_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginInstance);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_