Change undefined SkGpuRenderTarget and SkGpuTexture forward declares to GrRenderTarget and GrTextur…

src/effects/SkBlendImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlendImageFilter.h"
 #include "SkCanvas.h"
 #include "SkColorPriv.h"
@@ skipping 137 matching lines @@
     SkBlendImageFilter::Mode    fMode;
 
     typedef GrEffect INHERITED;
 };
 
 bool SkBlendImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, SkBitmap* result) {
     SkBitmap backgroundBM;
     if (!SkImageFilterUtils::GetInputResultGPU(getBackgroundInput(), proxy, src, &backgroundBM)) {
         return false;
     }
-    GrTexture* background = (GrTexture*) backgroundBM.getTexture();
+    GrTexture* background = backgroundBM.getTexture();
     SkBitmap foregroundBM;
     if (!SkImageFilterUtils::GetInputResultGPU(getForegroundInput(), proxy, src, &foregroundBM)) {
         return false;
     }
-    GrTexture* foreground = (GrTexture*) foregroundBM.getTexture();
+    GrTexture* foreground = foregroundBM.getTexture();
     GrContext* context = foreground->getContext();
 
     GrTextureDesc desc;
     desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit;
     desc.fWidth = src.width();
     desc.fHeight = src.height();
     desc.fConfig = kSkia8888_GrPixelConfig;
 
     GrAutoScratchTexture ast(context, desc);
     SkAutoTUnref<GrTexture> dst(ast.detach());
@@ skipping 138 matching lines @@
     EffectKey bgKey = GrGLEffectMatrix::GenKey(GrEffect::MakeDivByTextureWHMatrix(bgTex),
                                                drawEffect,
                                                kCoordsType,
                                                bgTex);
     bgKey <<= GrGLEffectMatrix::kKeyBits;
     EffectKey modeKey = blend.mode() << (2 * GrGLEffectMatrix::kKeyBits);
 
     return  modeKey | bgKey | fgKey;
 }
 #endif