Reland: Implement Aura side of unified touch text selection for contents

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 "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "content/common/content_switches_internal.h"
 #include "content/public/common/content_switches.h"
@@ skipping 43 matching lines @@
   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);
 #else
+  WebRuntimeFeatures::enableCompositedSelectionUpdate(true);
   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);
 #endif
 
 #if defined(OS_WIN)
   // Screen Orientation API is currently broken on Windows 8 Metro mode and
@@ skipping 110 matching lines @@
 
   if (command_line.HasSwitch(switches::kEnableViewport))
     WebRuntimeFeatures::enableCSSViewport(true);
 
   if (command_line.HasSwitch(switches::kDisableSVG1DOM)) {
     WebRuntimeFeatures::enableSVG1DOM(false);
   }
 }
 
 }  // namespace content