Fix virtual/override/final usage in Source/platform/.

Source/platform/graphics/RecordingImageBufferSurfaceTest.cpp

 // 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 "config.h"
 #include "platform/graphics/RecordingImageBufferSurface.h"
 
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/ImageBufferClient.h"
@@ skipping 240 matching lines @@
     void enterRunLoop()
     {
         m_mockPlatform.enterRunLoop();
     }
 
 private:
     class CurrentThreadMock : public WebThread {
     public:
         CurrentThreadMock() : m_taskObserver(0), m_task(0) { }
 
-        virtual ~CurrentThreadMock()
+        ~CurrentThreadMock() override
         {
             EXPECT_EQ((Task*)0, m_task);
         }
 
         virtual void postTask(const WebTraceLocation&, Task* task)
         {
             EXPECT_EQ((Task*)0, m_task);
             m_task = task;
         }
 
-        virtual void postDelayedTask(const WebTraceLocation&, Task*, long long delayMs) override { ASSERT_NOT_REACHED(); };
+        void postDelayedTask(const WebTraceLocation&, Task*, long long delayMs) override { ASSERT_NOT_REACHED(); };
 
-        virtual bool isCurrentThread() const override { return true; }
-        virtual PlatformThreadId threadId() const override
+        bool isCurrentThread() const override { return true; }
+        PlatformThreadId threadId() const override
         {
             ASSERT_NOT_REACHED();
             return 0;
         }
 
-        virtual void addTaskObserver(TaskObserver* taskObserver) override
+        void addTaskObserver(TaskObserver* taskObserver) override
         {
             EXPECT_EQ((TaskObserver*)0, m_taskObserver);
             m_taskObserver = taskObserver;
         }
 
-        virtual void removeTaskObserver(TaskObserver* taskObserver) override
+        void removeTaskObserver(TaskObserver* taskObserver) override
         {
             EXPECT_EQ(m_taskObserver, taskObserver);
             m_taskObserver = 0;
         }
 
-        virtual WebScheduler* scheduler() const override
+        WebScheduler* scheduler() const override
         {
             ASSERT_NOT_REACHED();
             return nullptr;
         }
 
         void enterRunLoop()
         {
             if (m_taskObserver)
                 m_taskObserver->willProcessTask();
             if (m_task) {
                 m_task->run();
                 delete m_task;
                 m_task = 0;
             }
             if (m_taskObserver)
                 m_taskObserver->didProcessTask();
         }
 
     private:
         TaskObserver* m_taskObserver;
         Task* m_task;
     };
 
     class CurrentThreadPlatformMock : public Platform {
     public:
         CurrentThreadPlatformMock() { }
         virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t length) { ASSERT_NOT_REACHED(); }
-        virtual WebThread* currentThread() override { return &m_currentThread; }
+        WebThread* currentThread() override { return &m_currentThread; }
 
         void enterRunLoop() { m_currentThread.enterRunLoop(); }
     private:
         CurrentThreadMock m_currentThread;
     };
 
     CurrentThreadPlatformMock m_mockPlatform;
     Platform* m_oldPlatform;
 };
 
 } // anonymous namespace
 
 #define DEFINE_TEST_TASK_WRAPPER_CLASS(TEST_METHOD)                                               \
 class TestWrapperTask_ ## TEST_METHOD : public WebThread::Task {                           \
     public:                                                                                       \
         TestWrapperTask_ ## TEST_METHOD(RecordingImageBufferSurfaceTest* test) : m_test(test) { } \
-        virtual void run() override { m_test->TEST_METHOD(); }                                    \
+        void run() override { m_test->TEST_METHOD(); }                                    \
     private:                                                                                      \
         RecordingImageBufferSurfaceTest* m_test;                                                  \
 };
 
 #define CALL_TEST_TASK_WRAPPER(TEST_METHOD)                                                               \
     {                                                                                                     \
         AutoInstallCurrentThreadPlatformMock ctpm;                                                        \
         Platform::current()->currentThread()->postTask(FROM_HERE, new TestWrapperTask_ ## TEST_METHOD(this)); \
         ctpm.enterRunLoop();                                      \
     }
@@ skipping 40 matching lines @@
 }
 
 DEFINE_TEST_TASK_WRAPPER_CLASS(testClearRect)
 TEST_F(RecordingImageBufferSurfaceTest, testClearRect)
 {
     CALL_TEST_TASK_WRAPPER(testClearRect);
     expectDisplayListEnabled(true);
 }
 
 } // namespace blink