Pepper: Reduce includes in generated thunks.

ppapi/thunk/ppb_mouse_cursor_thunk.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.
 
-// From ppb_mouse_cursor.idl modified Mon Apr  1 08:24:03 2013.
+// From ppb_mouse_cursor.idl modified Tue Aug 20 08:13:36 2013.
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/ppb_mouse_cursor.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
-#include "ppapi/thunk/ppb_instance_api.h"
-#include "ppapi/thunk/resource_creation_api.h"
-#include "ppapi/thunk/thunk.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
 
 namespace ppapi {
 namespace thunk {
 
 namespace {
 
 PP_Bool SetCursor(PP_Instance instance,
                   enum PP_MouseCursor_Type type,
                   PP_Resource image,
                   const struct PP_Point* hot_spot) {
   VLOG(4) << "PPB_MouseCursor::SetCursor()";
   EnterInstance enter(instance);
   if (enter.failed())
     return PP_FALSE;
   return enter.functions()->SetCursor(instance, type, image, hot_spot);
 }
 
 const PPB_MouseCursor_1_0 g_ppb_mousecursor_thunk_1_0 = {
   &SetCursor
 };
 
 }  // namespace
 
-const PPB_MouseCursor_1_0* GetPPB_MouseCursor_1_0_Thunk() {
+PPAPI_THUNK_EXPORT const PPB_MouseCursor_1_0* GetPPB_MouseCursor_1_0_Thunk() {
   return &g_ppb_mousecursor_thunk_1_0;
 }
 
 }  // namespace thunk
 }  // namespace ppapi