mash: Move ash/common/wm/shelf to ash/common/shelf

ash/common/shelf/shelf_constants.cc

Index: ash/common/shelf/shelf_constants.cc
diff --git a/ash/shelf/shelf_constants.cc b/ash/common/shelf/shelf_constants.cc
similarity index 72%
rename from ash/shelf/shelf_constants.cc
rename to ash/common/shelf/shelf_constants.cc
index dff9883617d42021b024cc6c7915a8942b077672..d232b3292f66eec290a79ec2d7f7ac89e10dfd41 100644
--- a/ash/shelf/shelf_constants.cc
+++ b/ash/common/shelf/shelf_constants.cc
@@ -2,13 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ash/shelf/shelf_constants.h"
+#include "ash/common/shelf/shelf_constants.h"
 
 namespace ash {
 
+const int kShelfBackgroundAlpha = 204;
 const int kInvalidImageResourceID = -1;
 const int kShelfSize = 47;
 const int kShelfButtonSpacing = 10;
 const int kShelfButtonSize = 44;
+const int kTimeToSwitchBackgroundMs = 1000;
 
 }  // namespace ash