Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/[css|rendering|clipboard]

Source/core/rendering/RenderText.cpp

Index: Source/core/rendering/RenderText.cpp
diff --git a/Source/core/rendering/RenderText.cpp b/Source/core/rendering/RenderText.cpp
index ca5a27af9f461762e5a915b9c82f8f77c1fe7c03..d083b2e1d0596e6d4d2ad3d09a16496e6ff82450 100644
--- a/Source/core/rendering/RenderText.cpp
+++ b/Source/core/rendering/RenderText.cpp
@@ -68,7 +68,7 @@ class SecureTextTimer;
 typedef HashMap<RenderText*, SecureTextTimer*> SecureTextTimerMap;
 static SecureTextTimerMap* gSecureTextTimers = 0;
 
-class SecureTextTimer FINAL : public TimerBase {
+class SecureTextTimer final : public TimerBase {
 public:
     SecureTextTimer(RenderText* renderText)
         : m_renderText(renderText)
@@ -86,7 +86,7 @@ public:
     unsigned lastTypedCharacterOffset() { return m_lastTypedCharacterOffset; }
 
 private:
-    virtual void fired() OVERRIDE
+    virtual void fired() override
     {
         ASSERT(gSecureTextTimers->contains(m_renderText));
         m_renderText->setText(m_renderText->text().impl(), true /* forcing setting text as it may be masked later */);