Add a policy to always show the Cast toolbar icon

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/features.h"
 #include "chrome/common/pref_font_webkit_names.h"
@@ skipping 1939 matching lines @@
 // This is policy-controlled preference.
 // It has values defined in policy enum
 // SystemTimezoneAutomaticDetectionProto_AutomaticTimezoneDetectionType;
 const char kSystemTimezoneAutomaticDetectionPolicy[] =
     "settings.resolve_device_timezone_by_geolocation_policy";
 #endif  // defined(OS_CHROMEOS)
 
 #if defined(ENABLE_MEDIA_ROUTER)
 // Pref name for the policy controlling whether to enable Media Router.
 const char kEnableMediaRouter[] = "media_router.enable_media_router";
+#if !defined(OS_ANDROID)
+// Pref name for the policy controlling whether to force the Cast icon to be
+// shown in the toolbar/overflow menu.
+const char kShowCastIconInToolbar[] = "media_router.show_cast_icon_in_toolbar";
+#endif  // !defined(OS_ANDROID)
 #endif  // defined(ENABLE_MEDIA_ROUTER)
 
 // *************** SERVICE PREFS ***************
 // These are attached to the service process.
 
 const char kCloudPrintRoot[] = "cloud_print";
 const char kCloudPrintProxyEnabled[] = "cloud_print.enabled";
 // The unique id for this instance of the cloud print proxy.
 const char kCloudPrintProxyId[] = "cloud_print.proxy_id";
 // The GAIA auth token for Cloud Print
@@ skipping 379 matching lines @@
 const char kSearchGeolocationPreDisclosureMetricsRecorded[] =
     "search_geolocation_pre_disclosure_metrics_recorded";
 
 // Whether the metrics for the state of geolocation post-disclosure being shown
 // have been recorded.
 const char kSearchGeolocationPostDisclosureMetricsRecorded[] =
     "search_geolocation_post_disclosure_metrics_recorded";
 #endif
 
 }  // namespace prefs