remove references to DEPRECATED SkBitmap::kA1_Config. No functional change expected.

ui/message_center/views/notification_view.cc

Index: ui/message_center/views/notification_view.cc
diff --git a/ui/message_center/views/notification_view.cc b/ui/message_center/views/notification_view.cc
index 82223390b36a3a856604fe067c81209c0cdef300..6dc3beefc18304b9afc0669c92e1832addf3821c 100644
--- a/ui/message_center/views/notification_view.cc
+++ b/ui/message_center/views/notification_view.cc
@@ -112,7 +112,6 @@ bool HasAlpha(gfx::ImageSkia& image, views::Widget* widget) {
       image.GetRepresentation(ui::GetImageScale(factor)).sk_bitmap();
   if (!bitmap.isNull()) {
     SkBitmap alpha;
-    alpha.setConfig(SkBitmap::kA1_Config, bitmap.width(), bitmap.height(), 0);

[danakj, 2013/11/20 00:17:13]

This seems odd, what is setting the config/width/height then?

[reed1, 2013/11/20 16:07:31]

extractBitmap takes care of sizing and allocating the result. The current
settings are ignored (i.e. we could have removed this line long before this
deprecation CL).

     bitmap.extractAlpha(&alpha);
     for (int y = 0; y < bitmap.height(); ++y) {
       for (int x = 0; x < bitmap.width(); ++x) {