[Custom Tabs] Implement "Read It Later" Behind a Flag

chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser;
 
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.content.Context;
 import android.content.Intent;
@@ skipping 1073 matching lines @@
 
     private void moveTabToOtherWindow(Tab tab) {
         Class<? extends Activity> targetActivity =
                 MultiWindowUtils.getInstance().getOpenInOtherWindowActivity(this);
         if (targetActivity == null) return;
 
         Intent intent = new Intent(this, targetActivity);
         intent.setClass(this, targetActivity);
         intent.setFlags(MultiWindowUtils.FLAG_ACTIVITY_LAUNCH_ADJACENT);
 
-        tab.detachAndStartReparenting(intent, null, null);
+        tab.detachAndStartReparenting(intent, null, null, true);
     }
 
     @Override
     public boolean handleBackPressed() {
         if (!mUIInitialized) return false;
         final Tab currentTab = getActivityTab();
 
         if (currentTab == null) {
             recordBackPressedUma("currentTab is null", BACK_PRESSED_TAB_IS_NULL);
             moveTaskToBack(true);
@@ skipping 313 matching lines @@
         if (getActivityTab() != null) {
             setStatusBarColor(getActivityTab(), getActivityTab().getThemeColor());
         }
     }
 
     @Override
     protected void setStatusBarColor(Tab tab, int color) {
         super.setStatusBarColor(tab, isInOverviewMode() ? Color.BLACK : color);
     }
 }