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

chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappTabDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappTabDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappTabDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappTabDelegate.java
deleted file mode 100644
index e3e1e9e9a2c74c14e48d61cf70a12c6cf87e00c1..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappTabDelegate.java
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2017 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.webapps;
-
-import android.net.Uri;
-import android.support.customtabs.CustomTabsIntent;
-
-import org.chromium.chrome.browser.tab.Tab;
-import org.chromium.chrome.browser.tab.TabIdManager;
-import org.chromium.chrome.browser.tabmodel.AsyncTabParamsManager;
-import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
-import org.chromium.chrome.browser.tabmodel.document.AsyncTabCreationParams;
-import org.chromium.chrome.browser.tabmodel.document.TabDelegate;
-
-/**
- * Asynchronously creates Tabs for navigation originating from an installed PWA.
- *
- * This is the same as the parent class with exception of opening a Custom Tab for
- * {@code _blank} links and {@code window.open(url)} calls instead of creating a new tab in Chrome.
- */
-public class WebappTabDelegate extends TabDelegate {
-    private final WebappActivity mActivity;
-
-    public WebappTabDelegate(WebappActivity activity, boolean incognito) {
-        super(incognito);
-        this.mActivity = activity;
-    }
-
-    @Override
-    public void createNewTab(AsyncTabCreationParams asyncParams, TabLaunchType type, int parentId) {
-        int assignedTabId = TabIdManager.getInstance().generateValidId(Tab.INVALID_TAB_ID);
-        AsyncTabParamsManager.add(assignedTabId, asyncParams);
-
-        CustomTabsIntent customTabIntent =
-                new CustomTabsIntent.Builder().setShowTitle(true).build();
-
-        customTabIntent.intent.setPackage(mActivity.getPackageName());
-        addAsyncTabExtras(asyncParams, parentId, true, assignedTabId, customTabIntent.intent);
-        customTabIntent.launchUrl(mActivity, Uri.parse(asyncParams.getLoadUrlParams().getUrl()));
-    }
-}