Switch to standard integer types in ppapi/.

ppapi/cpp/private/pdf.h

 // Copyright (c) 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_CPP_PRIVATE_PDF_H_
 #define PPAPI_CPP_PRIVATE_PDF_H_
 
+#include <stdint.h>
+
 #include <string>
 
 #include "ppapi/c/private/ppb_pdf.h"
 
 struct PP_BrowserFont_Trusted_Description;
 
 namespace pp {
 
 class ImageData;
 class InstanceHandle;
@@ skipping 36 matching lines @@
   static void GetV8ExternalSnapshotData(const InstanceHandle& instance,
                                         const char** natives_data_out,
                                         int* natives_size_out,
                                         const char** snapshot_data_out,
                                         int* snapshot_size_out);
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_PDF_H_