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

src/gpu/gl/GrGLTextureRenderTarget.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLTextureRenderTarget_DEFINED
 #define GrGLTextureRenderTarget_DEFINED
@@ skipping 17 matching lines @@
                             const GrSurfaceDesc& desc,
                             const GrGLTexture::IDDesc& texIDDesc,
                             const GrGLRenderTarget::IDDesc& rtIDDesc)
         : GrSurface(gpu, texIDDesc.fIsWrapped, desc)
         , GrGLTexture(gpu, desc, texIDDesc, GrGLTexture::kDerived)
         , GrGLRenderTarget(gpu, desc, rtIDDesc, GrGLRenderTarget::kDerived) {
         this->registerWithCache();
     }
 
 protected:
-    virtual void onAbandon() SK_OVERRIDE {
+    void onAbandon() SK_OVERRIDE {
         GrGLRenderTarget::onAbandon();
         GrGLTexture::onAbandon();
     }
 
-    virtual void onRelease() SK_OVERRIDE {
+    void onRelease() SK_OVERRIDE {
         GrGLRenderTarget::onRelease();
         GrGLTexture::onRelease();
     }
 
 private:
     // GrGLRenderTarget accounts for the texture's memory and any MSAA renderbuffer's memory.
-    virtual size_t onGpuMemorySize() const SK_OVERRIDE {
+    size_t onGpuMemorySize() const SK_OVERRIDE {
         return GrGLRenderTarget::onGpuMemorySize();
     }
 
 };
 
 #ifdef SK_BUILD_FOR_WIN
 #pragma warning(pop)
 #endif
 
 #endif