Ash: Use translucent frames by default

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index 1041a3dca9a50ecf3f495b991bf89648d1935c41..f37f2f7f1d9e51db428304a0e4b6b32079de5d89 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -589,8 +589,8 @@ views::NonClientFrameView* Shell::CreateDefaultNonClientFrameView(
       switches::kAuraGoogleDialogFrames)) {
     return new internal::DialogFrameView;
   }
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kAuraTranslucentFrames)) {
+  // Normal non-compact-mode gets translucent-style window frames for dialogs.
+  if (!IsWindowModeCompact()) {
     internal::CustomFrameViewAsh* frame_view = new internal::CustomFrameViewAsh;
     frame_view->Init(widget);
     return frame_view;