Remove unused in-process pepper APIs

ppapi/proxy/resource_creation_proxy.cc

 // 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.
 
 #include "ppapi/proxy/resource_creation_proxy.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/proxy/audio_input_resource.h"
 #include "ppapi/proxy/camera_device_resource.h"
@@ skipping 451 matching lines @@
     PP_Instance instance) {
   return PPB_Flash_MessageLoop_Proxy::CreateProxyResource(instance);
 }
 
 PP_Resource ResourceCreationProxy::CreatePlatformVerificationPrivate(
     PP_Instance instance) {
   return (new PlatformVerificationPrivateResource(GetConnection(), instance))->
       GetReference();
 }
 
-PP_Resource ResourceCreationProxy::CreateScrollbar(PP_Instance instance,
-                                                   PP_Bool vertical) {
-  NOTIMPLEMENTED();  // Not proxied yet.
-  return 0;
-}
-
 PP_Resource ResourceCreationProxy::CreateVideoCapture(PP_Instance instance) {
   PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
   if (!dispatcher)
     return 0;
   return (new VideoCaptureResource(GetConnection(), instance, dispatcher))
       ->GetReference();
 }
 
 PP_Resource ResourceCreationProxy::CreateVideoDecoderDev(
     PP_Instance instance,
@@ skipping 12 matching lines @@
 bool ResourceCreationProxy::OnMessageReceived(const IPC::Message& msg) {
   return false;
 }
 
 Connection ResourceCreationProxy::GetConnection() {
   return Connection(PluginGlobals::Get()->GetBrowserSender(), dispatcher());
 }
 
 }  // namespace proxy
 }  // namespace ppapi