Refactor layout constants in preparation for adding support for Material Hybrid.

chrome/browser/ui/views/frame/glass_browser_frame_view.cc

Index: chrome/browser/ui/views/frame/glass_browser_frame_view.cc
diff --git a/chrome/browser/ui/views/frame/glass_browser_frame_view.cc b/chrome/browser/ui/views/frame/glass_browser_frame_view.cc
index 71f69fab50f129a703e3f01f9391b42e00292286..7b8ef807b9e73bedc68751523ff83fd7be3eb1c4 100644
--- a/chrome/browser/ui/views/frame/glass_browser_frame_view.cc
+++ b/chrome/browser/ui/views/frame/glass_browser_frame_view.cc
@@ -121,7 +121,7 @@ gfx::Rect GlassBrowserFrameView::GetBoundsForTabStrip(
       // In non-maximized mode, allow the new tab button to slide completely
       // under the avatar button.
       if (!frame()->IsMaximized()) {
-        end_x = std::min(end_x + GetLayoutConstant(NEW_TAB_BUTTON_WIDTH) +
+        end_x = std::min(end_x + GetLayoutSize(NEW_TAB_BUTTON).width() +
                              kNewTabCaptionRestoredSpacing,
                          old_end_x);
       }