Add pref to enable/disable palette tray.

chrome/common/pref_names.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 "chrome/common/pref_names.h"
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
@@ skipping 652 matching lines @@
 
 // A dictionary pref that specifies per-display layout/offset information.
 // Its key is the ID of the display and its value is a dictionary for the
 // layout/offset information.
 const char kSecondaryDisplays[] = "settings.display.secondary_displays";
 
 // A dictionary pref that specifies the state of the rotation lock, and the
 // display orientation, for the internal display.
 const char kDisplayRotationLock[] = "settings.display.rotation_lock";
 
+// A boolean pref that specifies if the ash palette should be enabled/disabled.
+const char kEnableAshPalette[] = "settings.enable_ash_palette";
+
 // A boolean pref that specifies if the default note-taking app should be
 // launched after an eject input event has been received.
 const char kLaunchNoteAppOnEjectEvent[] =
     "settings.launch_note_app_on_eject_event";
 
 // A boolean pref indicating whether user activity has been observed in the
 // current session already. The pref is used to restore information about user
 // activity after browser crashes.
 const char kSessionUserActivitySeen[] = "session.user_activity_seen";
 
@@ skipping 1573 matching lines @@
 #endif  // defined(ENABLE_MEDIA_ROUTER)
 
 // The base64-encoded representation of the public key to use to validate origin
 // trial token signatures.
 const char kOriginTrialPublicKey[] = "origin_trials.public_key";
 
 // A list of origin trial features to disable by policy.
 const char kOriginTrialDisabledFeatures[] = "origin_trials.disabled_features";
 
 }  // namespace prefs