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

Source/core/plugins/DOMMimeType.h

Index: Source/core/plugins/DOMMimeType.h
diff --git a/Source/core/plugins/DOMMimeType.h b/Source/core/plugins/DOMMimeType.h
index d8b2a7ba3db8c611eea4cf2d2edd7292eb578566..3833a2b01d2584df59b692492a9a7d8b838b337f 100644
--- a/Source/core/plugins/DOMMimeType.h
+++ b/Source/core/plugins/DOMMimeType.h
@@ -34,7 +34,7 @@ namespace blink {
 class DOMPlugin;
 class LocalFrame;
 
-class DOMMimeType FINAL : public RefCountedWillBeGarbageCollectedFinalized<DOMMimeType>, public ScriptWrappable, public FrameDestructionObserver {
+class DOMMimeType final : public RefCountedWillBeGarbageCollectedFinalized<DOMMimeType>, public ScriptWrappable, public FrameDestructionObserver {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMMimeType);
     DEFINE_WRAPPERTYPEINFO();
 public:
@@ -49,7 +49,7 @@ public:
     const String& description() const;
     PassRefPtrWillBeRawPtr<DOMPlugin> enabledPlugin() const;
 
-    virtual void trace(Visitor*) OVERRIDE;
+    virtual void trace(Visitor*) override;
 
 private:
     const MimeClassInfo& mimeClassInfo() const { return m_pluginData->mimes()[m_index]; }