Replacing the OVERRIDE with override in third_party/WebKit/Source/platform

Source/platform/fonts/GlyphBufferTest.cpp

Index: Source/platform/fonts/GlyphBufferTest.cpp
diff --git a/Source/platform/fonts/GlyphBufferTest.cpp b/Source/platform/fonts/GlyphBufferTest.cpp
index 0f9470d411ee037e09bfcfa947a0521ef9dfff4e..23bb5b96e22551bf10c65708bd4c5e576a22f02e 100644
--- a/Source/platform/fonts/GlyphBufferTest.cpp
+++ b/Source/platform/fonts/GlyphBufferTest.cpp
@@ -26,7 +26,7 @@ public:
 private:
     TestSimpleFontData() : SimpleFontData(nullptr, 10, false, false) { }
 
-    bool fillGlyphPage(GlyphPage* pageToFill, unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength) const OVERRIDE
+    bool fillGlyphPage(GlyphPage* pageToFill, unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength) const override
     {
         return false;
     }