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

content/child/indexed_db/indexed_db_dispatcher_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/message_loop/message_loop_proxy.h"
 #include "base/values.h"
 #include "content/child/indexed_db/indexed_db_dispatcher.h"
 #include "content/child/indexed_db/webidbcursor_impl.h"
 #include "content/child/thread_safe_sender.h"
@@ skipping 122 matching lines @@
   EXPECT_TRUE(callbacks.error_seen());
 }
 
 namespace {
 
 class CursorCallbacks : public WebIDBCallbacks {
  public:
   explicit CursorCallbacks(scoped_ptr<WebIDBCursor>* cursor)
       : cursor_(cursor) {}
 
-  virtual void onSuccess(const WebData&,
-                         const WebVector<WebBlobInfo>&) override {}
-  virtual void onSuccess(WebIDBCursor* cursor,
-                         const WebIDBKey& key,
-                         const WebIDBKey& primaryKey,
-                         const WebData& value,
-                         const WebVector<WebBlobInfo>&) override {
+  void onSuccess(const WebData&, const WebVector<WebBlobInfo>&) override {}
+  void onSuccess(WebIDBCursor* cursor,
+                 const WebIDBKey& key,
+                 const WebIDBKey& primaryKey,
+                 const WebData& value,
+                 const WebVector<WebBlobInfo>&) override {
     cursor_->reset(cursor);
   }
 
  private:
   scoped_ptr<WebIDBCursor>* cursor_;
 
   DISALLOW_COPY_AND_ASSIGN(CursorCallbacks);
 };
 
 }  // namespace
@@ skipping 180 matching lines @@
                                       cursor1_transaction_id);
 
   EXPECT_EQ(2, cursor1->reset_count());
   EXPECT_EQ(0, cursor2->reset_count());
 
   cursor1.reset();
   cursor2.reset();
 }
 
 }  // namespace content