Switch to standard integer types in ppapi/.

ppapi/thunk/ppb_isolated_file_system_private_api.h

 // Copyright 2013 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_THUNK_PPB_ISOLATED_FILE_SYSTEM_PRIVATE_API_H_
 #define PPAPI_THUNK_PPB_ISOLATED_FILE_SYSTEM_PRIVATE_API_H_
 
+#include <stdint.h>
+
 #include "base/memory/ref_counted.h"
 #include "ppapi/c/private/ppb_isolated_file_system_private.h"
 #include "ppapi/shared_impl/singleton_resource_id.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
 namespace ppapi {
 
 class TrackedCallback;
 
 namespace thunk {
 
 class PPAPI_THUNK_EXPORT PPB_IsolatedFileSystem_Private_API {
  public:
   virtual ~PPB_IsolatedFileSystem_Private_API() {}
 
   virtual int32_t Open(PP_Instance instance,
                        PP_IsolatedFileSystemType_Private type,
                        PP_Resource* file_system,
                        scoped_refptr<TrackedCallback> callback) = 0;
 
   static const SingletonResourceID kSingletonResourceID =
       ISOLATED_FILESYSTEM_SINGLETON_ID;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_ISOLATED_FILE_SYSTEM_PRIVATE_API_H_