Switch to standard integer types in ppapi/.

ppapi/cpp/private/var_private.h

 // Copyright (c) 2011 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_VAR_PRIVATE_H_
 #define PPAPI_CPP_PRIVATE_VAR_PRIVATE_H_
 
+#include <stdint.h>
+
 #include "ppapi/cpp/var.h"
 
 namespace pp {
 
 class InstanceHandle;
 
 namespace deprecated {
 class ScriptableObject;
 }
 
@@ skipping 97 matching lines @@
  private:
   // Prevent an arbitrary pointer argument from being implicitly converted to
   // a bool at Var construction. If somebody makes such a mistake, (s)he will
   // get a compilation error.
   VarPrivate(void* non_scriptable_object_pointer);
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_VAR_PRIVATE_H_