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

src/gpu/gl/GrGLIndexBuffer.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLIndexBuffer_DEFINED
 #define GrGLIndexBuffer_DEFINED
 
@@ skipping 13 matching lines @@
     GrGLuint bufferID() const { return fImpl.bufferID(); }
     size_t baseOffset() const { return fImpl.baseOffset(); }
 
     void bind() const {
         if (!this->wasDestroyed()) {
             fImpl.bind(this->getGpuGL());
         }
     }
 
 protected:
-    virtual void onAbandon() SK_OVERRIDE;
-    virtual void onRelease() SK_OVERRIDE;
+    void onAbandon() SK_OVERRIDE;
+    void onRelease() SK_OVERRIDE;
 
 private:
-    virtual void* onMap() SK_OVERRIDE;
-    virtual void onUnmap() SK_OVERRIDE;
-    virtual bool onUpdateData(const void* src, size_t srcSizeInBytes) SK_OVERRIDE;
+    void* onMap() SK_OVERRIDE;
+    void onUnmap() SK_OVERRIDE;
+    bool onUpdateData(const void* src, size_t srcSizeInBytes) SK_OVERRIDE;
 
     GrGLGpu* getGpuGL() const {
         SkASSERT(!this->wasDestroyed());
         return (GrGLGpu*)(this->getGpu());
     }
 
     GrGLBufferImpl fImpl;
 
     typedef GrIndexBuffer INHERITED;
 };
 
 #endif