Flip HW video decode from being behind an "enable" flag to being behind a "disable" flag

content/public/common/content_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 "content/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 341 matching lines @@
 // Enable multithreaded GPU compositing of web content.
 const char kEnableThreadedCompositing[]     = "enable-threaded-compositing";
 
 // Disable multithreaded GPU compositing of web content.
 const char kDisableThreadedCompositing[]     = "disable-threaded-compositing";
 
 // Enable use of experimental TCP sockets API for sending data in the
 // SYN packet.
 const char kEnableTcpFastOpen[]             = "enable-tcp-fastopen";
 
-// Enables hardware acceleration of video decode, where available.
-const char kEnableAcceleratedVideoDecode[] = "enable-accelerated-video-decode";
+// Disables hardware acceleration of video decode, where available.
+const char kDisableAcceleratedVideoDecode[] =
+    "disable-accelerated-video-decode";
 
 // Enables support for video tracks. Current implementation is
 // incomplete and this flag is used for development and testing.
 const char kEnableVideoTrack[]              = "enable-video-track";
 
 // Enables the use of the viewport meta tag, which allows
 // pages to control aspects of their own layout. This also turns on touch-screen
 // pinch gestures.
 const char kEnableViewport[]                = "enable-viewport";
 
@@ skipping 302 matching lines @@
 const char kDefaultTileWidth[]              = "default-tile-width";
 const char kDefaultTileHeight[]             = "default-tile-height";
 
 // Sets the width and height above which a composited layer will get tiled.
 const char kMaxUntiledLayerWidth[]          = "max-untiled-layer-width";
 const char kMaxUntiledLayerHeight[]         = "max-untiled-layer-height";
 
 const char kFixedPositionCreatesStackingContext[]
     = "fixed-position-creates-stacking-context";
 }  // namespace switches