Switch to standard integer types in ppapi/.

ppapi/cpp/private/flash_file.h

 // 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.
 
 #ifndef PPAPI_CPP_PRIVATE_FLASH_FILE_H_
 #define PPAPI_CPP_PRIVATE_FLASH_FILE_H_
 
+#include <stdint.h>
+
 #include <string>
 #include <vector>
 
 #include "ppapi/c/private/ppb_flash_file.h"
 
 namespace pp {
 
 class FileRef;
 class InstanceHandle;
 
@@ skipping 45 matching lines @@
   static PP_FileHandle OpenFile(const pp::FileRef& resource,
                                 int32_t mode);
   static bool QueryFile(const pp::FileRef& resource,
                         PP_FileInfo* info);
 };
 
 }  // namespace flash
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_FLASH_FILE_H_