Some cleanup in GrTextureProvider and GrResourceProvider

src/gpu/GrBlurUtils.cpp

Index: src/gpu/GrBlurUtils.cpp
diff --git a/src/gpu/GrBlurUtils.cpp b/src/gpu/GrBlurUtils.cpp
index 733d1e6ece8bf8927b9515e6ff39774005e0fb95..6013b58bcfdef0bed0ac3070d53bdce5564d0d03 100644
--- a/src/gpu/GrBlurUtils.cpp
+++ b/src/gpu/GrBlurUtils.cpp
@@ -83,8 +83,7 @@ static bool draw_with_mask_filter(GrDrawContext* drawContext,
     desc.fHeight = dstM.fBounds.height();
     desc.fConfig = kAlpha_8_GrPixelConfig;
 
-    SkAutoTUnref<GrTexture> texture(textureProvider->refScratchTexture(
-        desc, GrTextureProvider::kApprox_ScratchTexMatch));
+    SkAutoTUnref<GrTexture> texture(textureProvider->createApproxTexture(desc));
     if (!texture) {
         return false;
     }
@@ -116,8 +115,7 @@ static GrTexture* create_mask_GPU(GrContext* context,
         desc.fConfig = kAlpha_8_GrPixelConfig;
     }
 
-    GrTexture* mask = context->textureProvider()->refScratchTexture(
-        desc, GrTextureProvider::kApprox_ScratchTexMatch);
+    GrTexture* mask = context->textureProvider()->createApproxTexture(desc);
     if (NULL == mask) {
         return NULL;
     }