Remove Navigation Transitions from Chromium

content/child/runtime_features.cc

 // Copyright 2013 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/child/runtime_features.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
@@ skipping 42 matching lines @@
   // Android does not have support for PagePopup
   WebRuntimeFeatures::enablePagePopup(false);
   // Android does not yet support SharedWorker. crbug.com/154571
   WebRuntimeFeatures::enableSharedWorker(false);
   // Android does not yet support NavigatorContentUtils.
   WebRuntimeFeatures::enableNavigatorContentUtils(false);
   WebRuntimeFeatures::enableOrientationEvent(true);
   WebRuntimeFeatures::enableFastMobileScrolling(true);
   WebRuntimeFeatures::enableMediaCapture(true);
   WebRuntimeFeatures::enableCompositedSelectionUpdate(true);
-  // If navigation transitions gets activated via field trial, enable it in
-  // blink. We don't set this to false in case the user has manually enabled
-  // the feature via experimental web platform features.
-  if (base::FieldTrialList::FindFullName("NavigationTransitions") == "Enabled")
-    WebRuntimeFeatures::enableNavigationTransitions(true);
   // Android won't be able to reliably support non-persistent notifications, the
   // intended behavior for which is in flux by itself.
   WebRuntimeFeatures::enableNotificationConstructor(false);
 #else
   WebRuntimeFeatures::enableNavigatorContentUtils(true);
 #endif  // defined(OS_ANDROID)
 
 #if !(defined OS_ANDROID || defined OS_CHROMEOS || defined OS_IOS)
     // Only Android, ChromeOS, and IOS support NetInfo right now.
     WebRuntimeFeatures::enableNetworkInformation(false);
@@ skipping 142 matching lines @@
         command_line.GetSwitchValueASCII(switches::kDisableBlinkFeatures), ',',
         &disabled_features);
     for (const std::string& feature : disabled_features) {
       WebRuntimeFeatures::enableFeatureFromString(
           blink::WebString::fromLatin1(feature), false);
     }
   }
 }
 
 }  // namespace content