remove SkBitmap::asImageInfo

src/image/SkImage_Raster.cpp

Index: src/image/SkImage_Raster.cpp
diff --git a/src/image/SkImage_Raster.cpp b/src/image/SkImage_Raster.cpp
index abf6dc8af08a761914aa59a29bed9cb0a7705fa0..7a8091c8af4cecb2618ab39330df61afd8689a86 100644
--- a/src/image/SkImage_Raster.cpp
+++ b/src/image/SkImage_Raster.cpp
@@ -133,8 +133,8 @@ bool SkImage_Raster::onReadPixels(SkBitmap* dst, const SkIRect& subset) const {
 
 const void* SkImage_Raster::onPeekPixels(SkImageInfo* infoPtr,
                                          size_t* rowBytesPtr) const {
-    SkImageInfo info;
-    if (!fBitmap.asImageInfo(&info) || !fBitmap.getPixels()) {
+    const SkImageInfo info = fBitmap.info();
+    if ((kUnknown_SkColorType == info.colorType()) || !fBitmap.getPixels()) {
         return NULL;
     }
     *infoPtr = info;