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

content/test/ppapi/ppapi_test.h

 // 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.
 
 #ifndef CONTENT_TEST_PPAPI_PPAPI_TEST_H_
 #define CONTENT_TEST_PPAPI_PPAPI_TEST_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 10 matching lines @@
 namespace base {
 class CommandLine;
 }
 
 namespace content {
 
 class PPAPITestMessageHandler : public content::TestMessageHandler {
  public:
   PPAPITestMessageHandler();
 
-  virtual MessageResponse HandleMessage(const std::string& json) override;
-  virtual void Reset() override;
+  MessageResponse HandleMessage(const std::string& json) override;
+  void Reset() override;
 
   const std::string& message() const {
     return message_;
   }
 
  private:
   std::string message_;
 
   DISALLOW_COPY_AND_ASSIGN(PPAPITestMessageHandler);
 };
 
 class PPAPITestBase : public ContentBrowserTest {
  public:
   PPAPITestBase();
 
   // ContentBrowserTest overrides.
-  virtual void SetUpCommandLine(base::CommandLine* command_line) override;
+  void SetUpCommandLine(base::CommandLine* command_line) override;
 
   virtual std::string BuildQuery(const std::string& base,
                                  const std::string& test_case) = 0;
 
   // Returns the URL to load for file: tests.
   GURL GetTestFileUrl(const std::string& test_case);
   virtual void RunTest(const std::string& test_case);
 
   // Run the test and reload. This can test for clean shutdown, including
   // leaked instance object vars.
   virtual void RunTestAndReload(const std::string& test_case);
 
  protected:
   // Runs the test for a tab given the tab that's already navigated to the
   // given URL.
   void RunTestURL(const GURL& test_url);
 };
 
 // In-process plugin test runner.  See OutOfProcessPPAPITest below for the
 // out-of-process version.
 class PPAPITest : public PPAPITestBase {
  public:
   PPAPITest();
 
-  virtual void SetUpCommandLine(base::CommandLine* command_line) override;
+  void SetUpCommandLine(base::CommandLine* command_line) override;
 
-  virtual std::string BuildQuery(const std::string& base,
-                                 const std::string& test_case) override;
+  std::string BuildQuery(const std::string& base,
+                         const std::string& test_case) override;
+
  protected:
   bool in_process_;  // Controls the --ppapi-in-process switch.
 };
 
 // Variant of PPAPITest that runs plugins out-of-process to test proxy
 // codepaths.
 class OutOfProcessPPAPITest : public PPAPITest {
  public:
   OutOfProcessPPAPITest();
 
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 };
 
 }  // namespace
 
 #endif  // CONTENT_TEST_PPAPI_PPAPI_TEST_H_