Switch to standard integer types in extensions/.

extensions/renderer/module_system_unittest.cc

 // 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.
 
 #include "extensions/renderer/module_system.h"
 
+#include <stdint.h>
+
 #include <utility>
 
 #include "base/memory/scoped_ptr.h"
 #include "extensions/renderer/module_system_test.h"
 #include "gin/modules/module_registry.h"
 
 namespace extensions {
 
 class CounterNatives : public ObjectBackedNativeHandler {
  public:
@@ skipping 480 matching lines @@
   gin::ModuleRegistry::From(env()->context()->v8_context())
       ->AddBuiltinModule(
           env()->isolate(), "natives",
           other_env->module_system()->NewInstance());
   other_env->ShutdownModuleSystem();
   env()->module_system()->Require("test");
   RunResolvedPromises();
 }
 
 }  // namespace extensions