Replace FINAL and OVERRIDE with their C++11 counterparts in Source/modules

Source/modules/webaudio/ChannelSplitterNode.h

Index: Source/modules/webaudio/ChannelSplitterNode.h
diff --git a/Source/modules/webaudio/ChannelSplitterNode.h b/Source/modules/webaudio/ChannelSplitterNode.h
index 12a64f55652bb84f4e0d00690d7242227cb669db..fdba9e99cdb26700cb172c17d7abf4720f029680 100644
--- a/Source/modules/webaudio/ChannelSplitterNode.h
+++ b/Source/modules/webaudio/ChannelSplitterNode.h
@@ -32,17 +32,17 @@ namespace blink {
 
 class AudioContext;
 
-class ChannelSplitterNode FINAL : public AudioNode {
+class ChannelSplitterNode final : public AudioNode {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static ChannelSplitterNode* create(AudioContext*, float sampleRate, unsigned numberOfOutputs);
 
     // AudioNode
-    virtual void process(size_t framesToProcess) OVERRIDE;
+    virtual void process(size_t framesToProcess) override;
 
 private:
-    virtual double tailTime() const OVERRIDE { return 0; }
-    virtual double latencyTime() const OVERRIDE { return 0; }
+    virtual double tailTime() const override { return 0; }
+    virtual double latencyTime() const override { return 0; }
 
     ChannelSplitterNode(AudioContext*, float sampleRate, unsigned numberOfOutputs);
 };