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

content/public/test/mock_download_manager.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_TEST_MOCK_DOWNLOAD_MANAGER_H_
 #define CONTENT_PUBLIC_TEST_MOCK_DOWNLOAD_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 53 matching lines @@
       DownloadInterruptReason interrupt_reason,
       bool opened);
     // Required by clang compiler.
     CreateDownloadItemAdapter(const CreateDownloadItemAdapter& rhs);
     ~CreateDownloadItemAdapter();
 
     bool operator==(const CreateDownloadItemAdapter& rhs) const;
   };
 
   MockDownloadManager();
-  virtual ~MockDownloadManager();
+  ~MockDownloadManager() override;
 
   // DownloadManager:
   MOCK_METHOD1(SetDelegate, void(DownloadManagerDelegate* delegate));
   MOCK_CONST_METHOD0(GetDelegate, DownloadManagerDelegate*());
   MOCK_METHOD0(Shutdown, void());
   MOCK_METHOD1(GetAllDownloads, void(DownloadVector* downloads));
   MOCK_METHOD1(Init, bool(BrowserContext* browser_context));
 
   // Gasket for handling scoped_ptr arguments.
-  virtual void StartDownload(
+  void StartDownload(
       scoped_ptr<DownloadCreateInfo> info,
       scoped_ptr<ByteStreamReader> stream,
       const DownloadUrlParameters::OnStartedCallback& callback) override;
 
   MOCK_METHOD2(MockStartDownload,
                void(DownloadCreateInfo*, ByteStreamReader*));
   MOCK_METHOD2(RemoveDownloadsBetween, int(base::Time remove_begin,
                                            base::Time remove_end));
   MOCK_METHOD1(RemoveDownloads, int(base::Time remove_begin));
   MOCK_METHOD0(RemoveAllDownloads, int());
   MOCK_METHOD1(DownloadUrlMock, void(DownloadUrlParameters*));
-  virtual void DownloadUrl(scoped_ptr<DownloadUrlParameters> params) override {
+  void DownloadUrl(scoped_ptr<DownloadUrlParameters> params) override {
     DownloadUrlMock(params.get());
   }
   MOCK_METHOD1(AddObserver, void(Observer* observer));
   MOCK_METHOD1(RemoveObserver, void(Observer* observer));
 
   // Redirects to mock method to get around gmock 10 argument limit.
-  virtual DownloadItem* CreateDownloadItem(
+  DownloadItem* CreateDownloadItem(
       uint32 id,
       const base::FilePath& current_path,
       const base::FilePath& target_path,
       const std::vector<GURL>& url_chain,
       const GURL& referrer_url,
       const std::string& mime_type,
       const std::string& original_mime_type,
       const base::Time& start_time,
       const base::Time& end_time,
       const std::string& etag,
@@ skipping 11 matching lines @@
   MOCK_CONST_METHOD0(InProgressCount, int());
   MOCK_CONST_METHOD0(NonMaliciousInProgressCount, int());
   MOCK_CONST_METHOD0(GetBrowserContext, BrowserContext*());
   MOCK_METHOD0(CheckForHistoryFilesRemoval, void());
   MOCK_METHOD1(GetDownload, DownloadItem*(uint32 id));
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_MOCK_DOWNLOAD_MANAGER_H_