promote SkImage::AlphaType to SkAlphaType

BUG=
R=bsalomon@google.com

Review URL: https://codereview.chromium.org/24130009

git-svn-id: http://skia.googlecode.com/svn/trunk@11421 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/fatpathfill.cpp b/gm/fatpathfill.cpp
index 4498879..8b89232 100644
--- a/gm/fatpathfill.cpp
+++ b/gm/fatpathfill.cpp
@@ -16,13 +16,7 @@
 #define REPEAT_LOOP 5
 
 static SkSurface* new_surface(int width, int height) {
-    SkImage::Info info = {
-        width,
-        height,
-        SkImage::kPMColor_ColorType,
-        SkImage::kPremul_AlphaType
-    };
-    return SkSurface::NewRaster(info);
+    return SkSurface::NewRasterPMColor(width, height);
 }
 
 static void draw_pixel_centers(SkCanvas* canvas) {
diff --git a/gm/image.cpp b/gm/image.cpp
index 6dada0d..e9378be 100644
--- a/gm/image.cpp
+++ b/gm/image.cpp
@@ -178,12 +178,9 @@
         // since we draw into this directly, we need to start fresh
         sk_bzero(fBuffer, fBufferSize);
 
-        SkImage::Info info;
-
-        info.fWidth = W;
-        info.fHeight = H;
-        info.fColorType = SkImage::kPMColor_ColorType;
-        info.fAlphaType = SkImage::kPremul_AlphaType;
+        SkImage::Info info = {
+            W, H, SkImage::kPMColor_ColorType, kPremul_SkAlphaType
+        };
         SkAutoTUnref<SkSurface> surf0(SkSurface::NewRasterDirect(info, fBuffer, RB));
         SkAutoTUnref<SkSurface> surf1(SkSurface::NewRaster(info));
         SkAutoTUnref<SkSurface> surf2(SkSurface::NewPicture(info.fWidth, info.fHeight));
diff --git a/gm/srcmode.cpp b/gm/srcmode.cpp
index e8a97e2..0f2591c 100644
--- a/gm/srcmode.cpp
+++ b/gm/srcmode.cpp
@@ -121,7 +121,7 @@
             size.width(),
             size.height(),
             SkImage::kPMColor_ColorType,
-            SkImage::kPremul_AlphaType
+            kPremul_SkAlphaType
         };
 #if SK_SUPPORT_GPU
         SkBaseDevice* dev = canvas->getDevice();