Some cleanup in GrTextureProvider and GrResourceProvider

src/effects/SkXfermodeImageFilter.cpp

 /*
  * Copyright 2013 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 "SkXfermodeImageFilter.h"
 #include "SkCanvas.h"
 #include "SkDevice.h"
@@ skipping 142 matching lines @@
     GrTexture* foregroundTex = foreground.getTexture();
     GrContext* context = foregroundTex->getContext();
 
     GrFragmentProcessor* xferProcessor = NULL;
 
     GrSurfaceDesc desc;
     desc.fFlags = kRenderTarget_GrSurfaceFlag;
     desc.fWidth = src.width();
     desc.fHeight = src.height();
     desc.fConfig = kSkia8888_GrPixelConfig;
-    SkAutoTUnref<GrTexture> dst(context->textureProvider()->refScratchTexture(
-        desc, GrTextureProvider::kApprox_ScratchTexMatch));
+    SkAutoTUnref<GrTexture> dst(context->textureProvider()->createApproxTexture(desc));
     if (!dst) {
         return false;
     }
 
     GrPaint paint;
     if (!fMode || !fMode->asFragmentProcessor(&xferProcessor, paint.getProcessorDataManager(),
                                               backgroundTex)) {
         // canFilterImageGPU() should've taken care of this
         SkASSERT(false);
         return false;
@@ skipping 27 matching lines @@
                           SkMatrix::I(), srcRect);
 
     offset->fX = backgroundOffset.fX;
     offset->fY = backgroundOffset.fY;
     WrapTexture(dst, src.width(), src.height(), result);
     return true;
 }
 
 #endif