move SkImage::ColorType into SkColorType

objective -- move clients over to SkImage

tasks
- use SkImageInfo instead of SkBitmap::Config
- add support for colortables to SkImage
- add drawImage to SkCanvas
- return SkImage from readPixels

This CL works towards the first task

R=robertphillips@google.com

Review URL: https://codereview.chromium.org/54363008

git-svn-id: http://skia.googlecode.com/svn/trunk@12077 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleFatBits.cpp b/samplecode/SampleFatBits.cpp
index cf441cd..c6fc67f 100644
--- a/samplecode/SampleFatBits.cpp
+++ b/samplecode/SampleFatBits.cpp
@@ -106,8 +106,8 @@
         fInverse.setScale(SK_Scalar1 / zoom, SK_Scalar1 / zoom);
         fShader->setLocalMatrix(fMatrix);
 
-        SkImage::Info info = {
-            width, height, SkImage::kPMColor_ColorType, SkImage::kPremul_AlphaType
+        SkImageInfo info = {
+            width, height, kPMColor_SkColorType, kPremul_SkAlphaType
         };
         fMinSurface.reset(SkSurface::NewRaster(info));
         info.fWidth *= zoom;