Allow Web Animations CSS flag to be turned off as well as on

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 {
 
 // The number of MSAA samples for canvas2D. Requires MSAA support by GPU to
 // have an effect. 0 disables MSAA.
@@ skipping 288 matching lines @@
 const char kDisableThreadedCompositing[]     = "disable-threaded-compositing";
 
 // Disables the threaded HTML parser in Blink
 const char kDisableThreadedHTMLParser[]     = "disable-threaded-html-parser";
 
 // Disable accelerated overflow scrolling in corner cases (that would not be
 // handled by enable-accelerated-overflow-scroll).
 const char kDisableUniversalAcceleratedOverflowScroll[] =
     "disable-universal-accelerated-overflow-scroll";
 
+// Disables unprefixed Media Source API (i.e., the MediaSource object).
+const char kDisableUnprefixedMediaSource[]  = "disable-unprefixed-media-source";
+
+// Disable CSS Transitions / Animations on the Web Animations model.
+const char kDisableWebAnimationsCSS[]        = "disable-web-animations-css";
+
 // Disable web audio API.
 const char kDisableWebAudio[]               = "disable-webaudio";
 
 // Disables prefixed Media Source API (i.e., the WebKitMediaSource object).
 const char kDisableWebKitMediaSource[]      = "disable-webkit-media-source";
 
-// Disables unprefixed Media Source API (i.e., the MediaSource object).
-const char kDisableUnprefixedMediaSource[]  = "disable-unprefixed-media-source";
-
 // Don't enforce the same-origin policy. (Used by people testing their sites.)
 const char kDisableWebSecurity[]            = "disable-web-security";
 
 // Disables support for XSLT.
 const char kDisableXSLT[]                   = "disable-xslt";
 
 // Disables Blink's XSSAuditor. The XSSAuditor mitigates reflective XSS.
 const char kDisableXSSAuditor[]             = "disable-xss-auditor";
 
 // Specifies if the |DOMAutomationController| needs to be bound in the
@@ skipping 677 matching lines @@
 #endif
 
 #if defined(OS_POSIX)
 // Causes the child processes to cleanly exit via calling exit().
 const char kChildCleanExit[]                = "child-clean-exit";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches