Update {virtual,override} to follow C++11 style in content.

content/child/indexed_db/webidbcursor_impl_unittest.cc

 // Copyright 2013 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 "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "content/child/indexed_db/indexed_db_dispatcher.h"
 #include "content/child/indexed_db/indexed_db_key_builders.h"
 #include "content/child/indexed_db/webidbcursor_impl.h"
 #include "content/child/thread_safe_sender.h"
@@ skipping 81 matching lines @@
   int32 destroyed_cursor_id_;
   scoped_ptr<WebIDBCallbacks> callbacks_;
 };
 
 class MockContinueCallbacks : public WebIDBCallbacks {
  public:
   MockContinueCallbacks(IndexedDBKey* key = 0,
                         WebVector<WebBlobInfo>* webBlobInfo = 0)
       : key_(key), web_blob_info_(webBlobInfo) {}
 
-  virtual void onSuccess(const WebIDBKey& key,
-                         const WebIDBKey& primaryKey,
-                         const WebData& value,
-                         const WebVector<WebBlobInfo>& webBlobInfo) override {
+  void onSuccess(const WebIDBKey& key,
+                 const WebIDBKey& primaryKey,
+                 const WebData& value,
+                 const WebVector<WebBlobInfo>& webBlobInfo) override {
     if (key_)
       *key_ = IndexedDBKeyBuilder::Build(key);
     if (web_blob_info_)
       *web_blob_info_ = webBlobInfo;
   }
 
  private:
   IndexedDBKey* key_;
   WebVector<WebBlobInfo>* web_blob_info_;
 };
@@ skipping 204 matching lines @@
   // The real dispatcher would call cursor->CachedContinue(), so do that:
   scoped_ptr<WebIDBCallbacks> callbacks(new MockContinueCallbacks());
   cursor.CachedContinue(callbacks.get());
 
   // Now the cursor should have reset the rest of the cache.
   EXPECT_EQ(1, dispatcher_->reset_calls());
   EXPECT_EQ(1, dispatcher_->last_used_count());
 }
 
 }  // namespace content