One createTexture function, attempt to recycle scratch in createTexture.

Review URL: https://codereview.chromium.org/864383003
diff --git a/tools/PictureRenderer.cpp b/tools/PictureRenderer.cpp
index 3fe246c..6acd13c 100644
--- a/tools/PictureRenderer.cpp
+++ b/tools/PictureRenderer.cpp
@@ -155,7 +155,7 @@
                 desc.fWidth = width;
                 desc.fHeight = height;
                 desc.fSampleCnt = fSampleCount;
-                target.reset(fGrContext->createUncachedTexture(desc, NULL, 0));
+                target.reset(fGrContext->createTexture(desc, false, NULL, 0));
             }
 
             uint32_t flags = fUseDFText ? SkSurfaceProps::kUseDistanceFieldFonts_Flag : 0;