SkBitmap and SkPixelRef no longer need lock/unlock

ui/base/dragdrop/os_exchange_data_provider_win.cc

Index: ui/base/dragdrop/os_exchange_data_provider_win.cc
diff --git a/ui/base/dragdrop/os_exchange_data_provider_win.cc b/ui/base/dragdrop/os_exchange_data_provider_win.cc
index 7657d3af196fa2833a3589c8e9094009379f6cd1..3fa651b0c716e567a9837f76acb16a6a86dcbfdb 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_win.cc
+++ b/ui/base/dragdrop/os_exchange_data_provider_win.cc
@@ -579,10 +579,7 @@ void OSExchangeDataProviderWin::SetDragImage(
   if (!hbitmap)
     return;
 
-  {
-    SkAutoLockPixels lock(unpremul_bitmap);
-    memcpy(bits, unpremul_bitmap.getPixels(), height * rowbytes);
-  }
+  memcpy(bits, unpremul_bitmap.getPixels(), height * rowbytes);
 
   base::win::ScopedComPtr<IDragSourceHelper> helper;
   HRESULT rv = CoCreateInstance(CLSID_DragDropHelper, 0, CLSCTX_INPROC_SERVER,