Some cleanup in GrTextureProvider and GrResourceProvider

src/effects/SkMorphologyImageFilter.cpp

Index: src/effects/SkMorphologyImageFilter.cpp
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index 30ba25159d27b00bc454e67f36f960e77e01b1fa..20f76c1d935aaf090215b72a78d93f141b40aad3 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -662,8 +662,7 @@ bool apply_morphology(const SkBitmap& input,
     SkIRect srcRect = rect;
 
     if (radius.fWidth > 0) {
-        GrTexture* scratch = context->textureProvider()->refScratchTexture(
-            desc, GrTextureProvider::kApprox_ScratchTexMatch);
+        GrTexture* scratch = context->textureProvider()->createApproxTexture(desc);
         if (NULL == scratch) {
             return false;
         }
@@ -686,8 +685,7 @@ bool apply_morphology(const SkBitmap& input,
         srcRect = dstRect;
     }
     if (radius.fHeight > 0) {
-        GrTexture* scratch = context->textureProvider()->refScratchTexture(desc,
-            GrTextureProvider::kApprox_ScratchTexMatch);
+        GrTexture* scratch = context->textureProvider()->createApproxTexture(desc);
         if (NULL == scratch) {
             return false;
         }