Move ash::DisplayManager switches to ui::display

ash/common/ash_switches.h

Index: ash/common/ash_switches.h
diff --git a/ash/common/ash_switches.h b/ash/common/ash_switches.h
index 5192ab5f5e1a309011eaf520d673cd909f3e794b..c22b334c9d2bb1f8d310c73168cf4ae0b47b3539 100644
--- a/ash/common/ash_switches.h
+++ b/ash/common/ash_switches.h
@@ -31,16 +31,13 @@ ASH_EXPORT extern const char kAshEnableFullscreenAppList[];
 ASH_EXPORT extern const char kAshEnableMagnifierKeyScroller[];
 ASH_EXPORT extern const char kAshEnablePalette[];
 ASH_EXPORT extern const char kAshEnableExperimentalPaletteFeatures[];
-ASH_EXPORT extern const char kAshEnableUnifiedDesktop[];
 #endif
 ASH_EXPORT extern const char kAshEnableTouchView[];
 ASH_EXPORT extern const char kAshEnableMirroredScreen[];
 ASH_EXPORT extern const char kAshDisableStableOverviewOrder[];
 ASH_EXPORT extern const char kAshEnableStableOverviewOrder[];
-ASH_EXPORT extern const char kAshEnableSoftwareMirroring[];
 ASH_EXPORT extern const char kAshEnableTouchViewTesting[];
 ASH_EXPORT extern const char kAshHideNotificationsForFactory[];
-ASH_EXPORT extern const char kAshHostWindowBounds[];
 ASH_EXPORT extern const char kAshMaterialDesign[];
 ASH_EXPORT extern const char kAshMaterialDesignDisabled[];
 ASH_EXPORT extern const char kAshMaterialDesignEnabled[];
@@ -48,7 +45,6 @@ ASH_EXPORT extern const char kAshMaterialDesignExperimental[];
 ASH_EXPORT extern const char kAshMaxWindowsToUseMaskInOverview[];
 ASH_EXPORT extern const char kAshMaxWindowsToUseShapeInOverview[];
 ASH_EXPORT extern const char kAshTouchHud[];
-ASH_EXPORT extern const char kAshUseFirstDisplayAsInternal[];
 ASH_EXPORT extern const char kAuraLegacyPowerButton[];
 #if defined(OS_WIN)
 ASH_EXPORT extern const char kForceAshToDesktop[];