lock pixels in image when bitmap is immutable and not-lazy

src/image/SkImagePriv.h

Index: src/image/SkImagePriv.h
diff --git a/src/image/SkImagePriv.h b/src/image/SkImagePriv.h
index 0626d6a3ce72348934e52cab3f5e1d620a0a9f33..bc4a7b04add3d72d63b6ca5829b1f884e1ea2576 100644
--- a/src/image/SkImagePriv.h
+++ b/src/image/SkImagePriv.h
@@ -35,16 +35,12 @@ extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*,
  *  SkImageInfo, or the bitmap's pixels cannot be accessed, this will return
  *  NULL.
  */
-enum SharedPixelRefMode {
-    kLocked_SharedPixelRefMode,
-    kUnlocked_SharedPixelRefMode
-};
 enum ForceCopyMode {
     kNo_ForceCopyMode,
     kYes_ForceCopyMode, // must copy the pixels even if the bitmap is immutable
 };
 extern SkImage* SkNewImageFromRasterBitmap(const SkBitmap&, const SkSurfaceProps*,
-                                           SharedPixelRefMode, ForceCopyMode = kNo_ForceCopyMode);
+                                           ForceCopyMode = kNo_ForceCopyMode);
 
 static inline size_t SkImageMinRowBytes(const SkImageInfo& info) {
     size_t minRB = info.minRowBytes();