Pepper: Reduce includes in generated thunks.

ppapi/thunk/ppb_device_ref_dev_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 dev/ppb_device_ref_dev.idl modified Thu Dec 20 13:10:26 2012.
+// From dev/ppb_device_ref_dev.idl modified Tue Aug 20 08:13:36 2013.
 
 #include "ppapi/c/dev/ppb_device_ref_dev.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
 #include "ppapi/thunk/ppb_device_ref_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 {
 
 PP_Bool IsDeviceRef(PP_Resource resource) {
   VLOG(4) << "PPB_DeviceRef_Dev::IsDeviceRef()";
   EnterResource<PPB_DeviceRef_API> enter(resource, false);
   return PP_FromBool(enter.succeeded());
@@ skipping 16 matching lines @@
 }
 
 const PPB_DeviceRef_Dev_0_1 g_ppb_deviceref_dev_thunk_0_1 = {
   &IsDeviceRef,
   &GetType,
   &GetName
 };
 
 }  // namespace
 
-const PPB_DeviceRef_Dev_0_1* GetPPB_DeviceRef_Dev_0_1_Thunk() {
+PPAPI_THUNK_EXPORT const PPB_DeviceRef_Dev_0_1*
+    GetPPB_DeviceRef_Dev_0_1_Thunk() {
   return &g_ppb_deviceref_dev_thunk_0_1;
 }
 
 }  // namespace thunk
 }  // namespace ppapi