rename GrTextureDesc->GrSurfaceDesc, GrTextureFlags->GrSurfaceFlags

Review URL: https://codereview.chromium.org/682223002
diff --git a/tests/ReadWriteAlphaTest.cpp b/tests/ReadWriteAlphaTest.cpp
index 385a17e..7b6a05d 100644
--- a/tests/ReadWriteAlphaTest.cpp
+++ b/tests/ReadWriteAlphaTest.cpp
@@ -30,10 +30,10 @@
 
         memset(textureData, 0, X_SIZE * Y_SIZE);
 
-        GrTextureDesc desc;
+        GrSurfaceDesc desc;
 
         // let Skia know we will be using this texture as a render target
-        desc.fFlags     = kRenderTarget_GrTextureFlagBit;
+        desc.fFlags     = kRenderTarget_GrSurfaceFlag;
         // it is a single channel texture
         desc.fConfig    = kAlpha_8_GrPixelConfig;
         desc.fWidth     = X_SIZE;