SkBitmap and SkPixelRef no longer need lock/unlock

ui/base/dragdrop/drag_utils_win.cc

Index: ui/base/dragdrop/drag_utils_win.cc
diff --git a/ui/base/dragdrop/drag_utils_win.cc b/ui/base/dragdrop/drag_utils_win.cc
index fa482e2e026284b56e1edc4761cc0e5781c482b5..ff4e45c1c76aac1717281068931c7affd8b6792d 100644
--- a/ui/base/dragdrop/drag_utils_win.cc
+++ b/ui/base/dragdrop/drag_utils_win.cc
@@ -53,7 +53,6 @@ static HBITMAP CreateHBITMAPFromSkBitmap(const SkBitmap& sk_bitmap) {
   if (!bitmap || !bits)
     return NULL;
   DCHECK_EQ(sk_bitmap.rowBytes(), static_cast<size_t>(sk_bitmap.width() * 4));
-  SkAutoLockPixels lock(sk_bitmap);
   memcpy(
       bits, sk_bitmap.getPixels(), sk_bitmap.height() * sk_bitmap.rowBytes());
   return bitmap;