Do not use assets for Ash window control button backgrounds

chrome/browser/ui/layout_constants.h

Index: chrome/browser/ui/layout_constants.h
diff --git a/chrome/browser/ui/layout_constants.h b/chrome/browser/ui/layout_constants.h
index 603f094bc76b00b599a5b179df4fd7fcdca47253..afff77af4b6d2f0ebcd6aac97e44079bd2a6cafa 100644
--- a/chrome/browser/ui/layout_constants.h
+++ b/chrome/browser/ui/layout_constants.h
@@ -8,6 +8,18 @@
 #include "ui/gfx/geometry/insets.h"
 
 enum LayoutConstant {
+  // The height of a button in in a maximized Ash browser window.
+  ASH_BROWSER_MAXIMIZED_HEADER_BUTTON_HEIGHT,

[tdanderson, 2015/12/17 18:00:54]

Peter, is it appropriate to put these here since they are Ash-specific?

[Peter Kasting, 2015/12/17 20:56:08]

Covered in my other reply.

[tdanderson, 2015/12/18 17:42:53]

Acknowledged.

+
+  // The width of a button in in a maximized Ash browser window.
+  ASH_BROWSER_MAXIMIZED_HEADER_BUTTON_WIDTH,
+
+  // The height of a button in in a restored Ash browser window.
+  ASH_BROWSER_RESTORED_HEADER_BUTTON_HEIGHT,
+
+  // The width of a button in in a restored Ash browser window.
+  ASH_BROWSER_RESTORED_HEADER_BUTTON_WIDTH,
+
   // Vertical offset from top of content to the top of find bar.
   FIND_BAR_TOOLBAR_OVERLAP,