change more OVERRIDE instances to override in gin/

gin/modules/module_registry_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 "gin/modules/module_registry.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "gin/modules/module_registry_observer.h"
 #include "gin/modules/module_runner_delegate.h"
@@ skipping 19 matching lines @@
   scoped_ptr<ShellRunner> runner;
   Runner::Scope scope;
 };
 
 class ModuleRegistryObserverImpl : public ModuleRegistryObserver {
  public:
   ModuleRegistryObserverImpl() : did_add_count_(0) {}
 
   virtual void OnDidAddPendingModule(
       const std::string& id,
-      const std::vector<std::string>& dependencies) OVERRIDE {
+      const std::vector<std::string>& dependencies) override {
     did_add_count_++;
     id_ = id;
     dependencies_ = dependencies;
   }
 
   int did_add_count() { return did_add_count_; }
   const std::string& id() const { return id_; }
   const std::vector<std::string>& dependencies() const { return dependencies_; }
 
  private:
@@ skipping 76 matching lines @@
   for (int i = 0; i < 3; i++) {
     ModuleRegistry::From(helper.runner->GetContextHolder()->context())
         ->LoadModule(instance_->isolate(), "one", callback);
   }
   EXPECT_EQ(0, counter);
   helper.runner->Run(source, "script");
   EXPECT_EQ(3, counter);
 }
 
 }  // namespace gin