Switch to standard integer types in ppapi/.

ppapi/cpp/private/flash_drm.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_DRM_H_
 #define PPAPI_CPP_PRIVATE_FLASH_DRM_H_
 
+#include <stdint.h>
+
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/file_ref.h"
 #include "ppapi/cpp/resource.h"
 
 namespace pp {
 
 class FileRef;
 
 namespace flash {
 
@@ skipping 12 matching lines @@
   // On success, returns a value indicating if the monitor associated with the
   // current plugin instance is external.
   int32_t MonitorIsExternal(
       const CompletionCallbackWithOutput<PP_Bool>& callback);
 };
 
 }  // namespace flash
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_FLASH_DRM_H_