Remove --disable-svg1dom runtime flag

third_party/WebKit/Source/web/WebRuntimeFeatures.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 273 matching lines @@
 void WebRuntimeFeatures::enableCSSViewport(bool enable)
 {
     RuntimeEnabledFeatures::setCSSViewportEnabled(enable);
 }
 
 void WebRuntimeFeatures::enableV8IdleTasks(bool enable)
 {
     RuntimeEnabledFeatures::setV8IdleTasksEnabled(enable);
 }
 
-void WebRuntimeFeatures::enableSVG1DOM(bool enable)
-{
-    RuntimeEnabledFeatures::setSVG1DOMEnabled(enable);
-}
-
 void WebRuntimeFeatures::enableReducedReferrerGranularity(bool enable)
 {
     RuntimeEnabledFeatures::setReducedReferrerGranularityEnabled(enable);
 }
 
 void WebRuntimeFeatures::enablePushMessaging(bool enable)
 {
     RuntimeEnabledFeatures::setPushMessagingEnabled(enable);
 }
 
@@ skipping 16 matching lines @@
 {
     RuntimeEnabledFeatures::setNewMediaPlaybackUiEnabled(enable);
 }
 
 void WebRuntimeFeatures::enablePresentationAPI(bool enable)
 {
     RuntimeEnabledFeatures::setPresentationEnabled(enable);
 }
 
 } // namespace blink