Revert 277208 "[PPAPI] Compositor API implementation."

ppapi/host/resource_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 PPAPI_HOST_RESOURCE_HOST_H_
 #define PPAPI_HOST_RESOURCE_HOST_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 38 matching lines @@
   //
   // The current PP_Resource for all pending hosts should be 0. See
   // PpapiHostMsg_AttachToPendingHost.
   void SetPPResourceForPendingHost(PP_Resource pp_resource);
 
   virtual void SendReply(const ReplyMessageContext& context,
                          const IPC::Message& msg) OVERRIDE;
 
   // Simple RTTI. A subclass that is a host for one of these APIs will override
   // the appropriate function and return true.
-  virtual bool IsCompositorHost();
   virtual bool IsFileRefHost();
   virtual bool IsFileSystemHost();
   virtual bool IsGraphics2DHost();
   virtual bool IsMediaStreamVideoTrackHost();
 
  protected:
   // Adds a ResourceMessageFilter to handle resource messages. Incoming
   // messages will be passed to the handlers of these filters before being
   // handled by the resource host's own message handler. This allows
   // ResourceHosts to easily handle messages on other threads.
@@ skipping 17 matching lines @@
   // messages to.
   std::vector<scoped_refptr<ResourceMessageFilter> > message_filters_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceHost);
 };
 
 }  // namespace host
 }  // namespace ppapi
 
 #endif  // PPAPI_HOST_RESOURCE_HOST_H_