Switch to standard integer types in ppapi/.

ppapi/thunk/ppb_uma_singleton_api.h

 // Copyright 2014 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_UMA_PRIVATE_API_H_
 #define PPAPI_THUNK_PPB_UMA_PRIVATE_API_H_
 
+#include <stdint.h>
+
 #include "ppapi/shared_impl/singleton_resource_id.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
 namespace ppapi {
 namespace thunk {
 
 class PPAPI_THUNK_EXPORT PPB_UMA_Singleton_API {
  public:
   virtual ~PPB_UMA_Singleton_API() {}
 
@@ skipping 20 matching lines @@
       PP_Instance instance,
       scoped_refptr<TrackedCallback> cc) = 0;
 
   static const SingletonResourceID kSingletonResourceID = UMA_SINGLETON_ID;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_UMA_PRIVATE_API_H_