Change device factories to take SkImageInfo instead of SkBitmap::Config

patch from issue 167033002

BUG=skia:
R=reed@google.com

Author: reed@chromium.org

Review URL: https://codereview.chromium.org/168653002

git-svn-id: http://skia.googlecode.com/svn/trunk@13463 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/dm/DMPipeTask.cpp b/dm/DMPipeTask.cpp
index de3897a..163f1e6 100644
--- a/dm/DMPipeTask.cpp
+++ b/dm/DMPipeTask.cpp
@@ -47,7 +47,7 @@
 
 void PipeTask::draw() {
     SkBitmap bitmap;
-    SetupBitmap(fReference.config(), fGM.get(), &bitmap);
+    SetupBitmap(fReference.colorType(), fGM.get(), &bitmap);
 
     SkCanvas canvas(bitmap);
     PipeController pipeController(&canvas, &SkImageDecoder::DecodeMemory);