Pepper: Reduce includes in generated thunks.

ppapi/thunk/ppb_gamepad_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_gamepad.idl modified Wed Apr 17 11:16:00 2013.
+// From ppb_gamepad.idl modified Fri Nov 15 14:40:57 2013.
 
 #include <string.h>
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/ppb_gamepad.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
 #include "ppapi/thunk/ppb_gamepad_api.h"
-#include "ppapi/thunk/ppb_instance_api.h"
-#include "ppapi/thunk/resource_creation_api.h"
-#include "ppapi/thunk/thunk.h"
 
 namespace ppapi {
 namespace thunk {
 
 namespace {
 
 void Sample(PP_Instance instance, struct PP_GamepadsSampleData* data) {
   VLOG(4) << "PPB_Gamepad::Sample()";
   EnterInstanceAPI<PPB_Gamepad_API> enter(instance);
   if (enter.failed()) {
     memset(data, 0, sizeof(*data));
     return;
   }
   enter.functions()->Sample(instance, data);
 }
 
 const PPB_Gamepad_1_0 g_ppb_gamepad_thunk_1_0 = {
   &Sample
 };
 
 }  // namespace
 
-const PPB_Gamepad_1_0* GetPPB_Gamepad_1_0_Thunk() {
+PPAPI_THUNK_EXPORT const PPB_Gamepad_1_0* GetPPB_Gamepad_1_0_Thunk() {
   return &g_ppb_gamepad_thunk_1_0;
 }
 
 }  // namespace thunk
 }  // namespace ppapi