aura: Replace UI-feature GYP flags with switches.

ash/ash_switches.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/ash_switches.h"
 
 #include <string>
 
 #include "base/command_line.h"
 
 namespace ash {
 namespace switches {
 
+// Force the "compact" window mode regardless of the value of kAuraWindowMode.
+// This can be used to override a value set in chrome://flags.
+// TODO(derat): Remove this once the normal mode is usable on all platforms.
+const char kAuraForceCompactWindowMode[] = "aura-force-compact-window-mode";
+
 // Use Google-style dialog box frames.
 const char kAuraGoogleDialogFrames[] = "aura-google-dialog-frames";
 
+// (Most) Chrome OS hardware reports ACPI power button releases correctly.
+// Standard hardware reports releases immediately after presses.  If set, we
+// lock the screen or shutdown the system immediately in response to a press
+// instead of displaying an interactive animation.
+const char kAuraLegacyPowerButton[] = "aura-legacy-power-button";
+
 // Avoid drawing drop shadows under windows.
 const char kAuraNoShadows[] = "aura-no-shadows";
 
 // Use Aura-style translucent window frame.
 const char kAuraTranslucentFrames[] = "aura-translucent-frames";
 
 // Use a custom window style, e.g. --aura-window-mode=compact.
 // When this flag is not passed we default to "normal" mode.
 const char kAuraWindowMode[] = "aura-window-mode";
 
 // Show only a single maximized window, like traditional non-Aura builds.
 // Useful for low-resolution screens, such as on laptops.
 const char kAuraWindowModeCompact[] = "compact";
 
 // Default window management with multiple draggable windows.
 const char kAuraWindowModeNormal[] = "normal";
 
 // Use Aura-style workspace window dragging and sizing.
 const char kAuraWorkspaceManager[] = "aura-workspace-manager";
 
 }  // namespace switches
 }  // namespace ash