cros: Use runtime stylus detection for ash palette.

ash/common/ash_switches.cc

Index: ash/common/ash_switches.cc
diff --git a/ash/common/ash_switches.cc b/ash/common/ash_switches.cc
index d912f1494084bf67939be4b7b0db627931e08be3..857e96b362a94c3bd6ac23f6e76e7e8f8a010b7d 100644
--- a/ash/common/ash_switches.cc
+++ b/ash/common/ash_switches.cc
@@ -51,9 +51,6 @@ const char kAshEnableFullscreenAppList[] = "ash-enable-fullscreen-app-list";
 const char kAshEnableMagnifierKeyScroller[] =
     "ash-enable-magnifier-key-scroller";
 
-// Enables the palette next to the status area.
-const char kAshEnablePalette[] = "ash-enable-palette";
-
 // Enables the palette on every display, instead of only the internal one.
 const char kAshEnablePaletteOnAllDisplays[] =
     "ash-enable-palette-on-all-displays";
@@ -73,6 +70,9 @@ const char kAshEnableMirroredScreen[] = "ash-enable-mirrored-screen";
 // removed.
 const char kAshEnableTouchViewTesting[] = "ash-enable-touch-view-testing";
 
+// Enables the palette next to the status area.
+const char kAshForceEnablePalette[] = "ash-force-enable-palette";
+
 // Hides notifications that are irrelevant to Chrome OS device factory testing,
 // such as battery level updates.
 const char kAshHideNotificationsForFactory[] =