Revert of setConfig -> setInfo (https://codereview.chromium.org/308683005/)

Reason for revert:
broke all Windows bots

Original issue's description:
> setConfig -> setInfo
>
> BUG=skia:
>
> Committed: http://code.google.com/p/skia/source/detail?r=14978

R=robertphillips@google.com, reed@google.com
TBR=reed@google.com, robertphillips@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Author: epoger@google.com

Review URL: https://codereview.chromium.org/302053002

git-svn-id: http://skia.googlecode.com/svn/trunk@14979 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrPictureUtils.cpp b/src/gpu/GrPictureUtils.cpp
index 30a1d39..84a13be 100644
--- a/src/gpu/GrPictureUtils.cpp
+++ b/src/gpu/GrPictureUtils.cpp
@@ -41,7 +41,10 @@
         fInfo.fHasNestedLayers = false;
         fInfo.fIsNested = (2 == fSaveLayerDepth);
 
-        fEmptyBitmap.setInfo(SkImageInfo::MakeUnknown(fInfo.fSize.fWidth, fInfo.fSize.fHeight));
+        fEmptyBitmap.setConfig(SkImageInfo::Make(fInfo.fSize.fWidth,
+                                                 fInfo.fSize.fHeight,
+                                                 kUnknown_SkColorType,
+                                                 kIgnore_SkAlphaType));
         fAccelData = accelData;
         fAlreadyDrawn = false;
     }