[Chromecast] Remove use of VIDEO_HOLE

chromecast/base/chromecast_switches.cc

 // Copyright 2014 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 "chromecast/base/chromecast_switches.h"
 
 namespace switches {
 
 // Enable the CMA media pipeline.
 const char kEnableCmaMediaPipeline[] = "enable-cma-media-pipeline";
 
 // The bitmask of codecs (media_caps.h) supported by the current HDMI sink.
 const char kHdmiSinkSupportedCodecs[] = "hdmi-sink-supported-codecs";
 
-// Enables old (VIDEO_HOLE) hole punching codepath for video plane.
-// TODO(halliwell): remove switch and old codepath once overlays
-// are well established.
-const char kEnableLegacyHolePunching[] = "enable-legacy-hole-punching";
-
 // Enable file accesses. It should not be enabled for most Cast devices.
 const char kEnableLocalFileAccesses[] = "enable-local-file-accesses";
 
 // Override the URL to which metrics logs are sent for debugging.
 const char kOverrideMetricsUploadUrl[] = "override-metrics-upload-url";
 
 // Disable features that require WiFi management.
 const char kNoWifi[] = "no-wifi";
 
 // Allows media playback for hidden WebContents
 const char kAllowHiddenMediaPlayback[] = "allow-hidden-media-playback";
 
 // Pass the app id information to the renderer process, to be used for logging.
 // last-launched-app should be the app that just launched and is spawning the
 // renderer.
 const char kLastLaunchedApp[] = "last-launched-app";
 // previous-app should be the app that was running when last-launched-app
 // started.
 const char kPreviousApp[] = "previous-app";
 
 }  // namespace switches