Fix up all the easy virtual ... SK_OVERRIDE cases.

src/gpu/gl/builders/GrGLFragmentShaderBuilder.h

Index: src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
diff --git a/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h b/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
index 456ec4f27cddb7eec0253444bf97bcc33f78a30b..8e8a008e00e87425758ccd0fe99d76fb4865c8e4 100644
--- a/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
+++ b/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
@@ -87,11 +87,11 @@ public:
     GrGLFragmentShaderBuilder(GrGLProgramBuilder* program, uint8_t fragPosKey);
 
     // true public interface, defined explicitly in the abstract interfaces above
-    virtual bool enableFeature(GLSLFeature) SK_OVERRIDE;
+    bool enableFeature(GLSLFeature) SK_OVERRIDE;
     virtual SkString ensureFSCoords2D(const GrGLProcessor::TransformedCoordsArray& coords,
                                       int index) SK_OVERRIDE;
-    virtual const char* fragmentPosition() SK_OVERRIDE;
-    virtual const char* dstColor() SK_OVERRIDE;
+    const char* fragmentPosition() SK_OVERRIDE;
+    const char* dstColor() SK_OVERRIDE;
 
 private:
     // Private public interface, used by GrGLProgramBuilder to build a fragment shader