Redirects _blank and window.open() off-origin navigation from PWA to CCT.

chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/TabDelegate.java

 // Copyright 2014 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.tabmodel.document;
 
 import android.app.Activity;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.net.Uri;
@@ skipping 122 matching lines @@
         Intent intent = new Intent(
                 Intent.ACTION_VIEW, Uri.parse(asyncParams.getLoadUrlParams().getUrl()));
 
         ComponentName componentName = asyncParams.getComponentName();
         if (componentName == null) {
             intent.setClass(ContextUtils.getApplicationContext(), ChromeLauncherActivity.class);
         } else {
             intent.setComponent(componentName);
         }
 
+        addAsyncTabExtras(asyncParams, parentId, isChromeUI, assignedTabId, intent);
+
+        return intent;
+    }
+
+    protected final void addAsyncTabExtras(AsyncTabCreationParams asyncParams, int parentId,
+            boolean isChromeUI, int assignedTabId, Intent intent) {
         Map<String, String> extraHeaders = asyncParams.getLoadUrlParams().getExtraHeaders();
         if (extraHeaders != null && !extraHeaders.isEmpty()) {
             Bundle bundle = new Bundle();
             for (Map.Entry<String, String> header : extraHeaders.entrySet()) {
                 bundle.putString(header.getKey(), header.getValue());
             }
             intent.putExtra(Browser.EXTRA_HEADERS, bundle);
         }
 
         intent.putExtra(IntentHandler.EXTRA_TAB_ID, assignedTabId);
@@ skipping 11 matching lines @@
         if (parentActivity != null && parentActivity.getIntent() != null) {
             intent.putExtra(IntentHandler.EXTRA_PARENT_INTENT, parentActivity.getIntent());
         }
 
         if (asyncParams.getRequestId() != null) {
             intent.putExtra(ServiceTabLauncher.LAUNCH_REQUEST_ID_EXTRA,
                     asyncParams.getRequestId().intValue());
         }
 
         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        return intent;
     }
 
     /**
      * Passes the supplied web app launch intent to the IntentHandler.
      * @param intent Web app launch intent.
      */
     public void createNewStandaloneFrame(Intent intent) {
         assert intent != null;
         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                 | ApiCompatibilityUtils.getActivityNewDocumentFlag());
         IntentHandler.startActivityForTrustedIntent(intent);
     }
 }