Rename GrGpuGL to GrGLGpu for consistency

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
 
 #include "GrGLTexture.h"
 #include "GrGLRenderTarget.h"
 
-class GrGpuGL;
+class GrGLGpu;
 
 #ifdef SK_BUILD_FOR_WIN
 // Windows gives bogus warnings about inheriting asTexture/asRenderTarget via dominance.
 #pragma warning(push)
 #pragma warning(disable: 4250)
 #endif
 
 class GrGLTextureRenderTarget : public GrGLTexture, public GrGLRenderTarget {
 public:
     // We're virtually derived from GrSurface (via both GrGLTexture and GrGLRenderTarget) so its
     // constructor must be explicitly called.
-    GrGLTextureRenderTarget(GrGpuGL* gpu,
+    GrGLTextureRenderTarget(GrGLGpu* gpu,
                             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:
@@ skipping 13 matching lines @@
         return GrGLRenderTarget::onGpuMemorySize();
     }
 
 };
 
 #ifdef SK_BUILD_FOR_WIN
 #pragma warning(pop)
 #endif
 
 #endif