WebAPKs: Open links which are outside of WebAPK scope in Chrome not in WebAPK

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

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
index f2e941f41d6f7019cb9b482512c3d874ddb448d0..a06e5b6227ab2e5d3e4fc5f388df4f8ddeced54e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebApkActivity.java
@@ -8,6 +8,9 @@ import android.content.Intent;
 
 import org.chromium.chrome.browser.ShortcutHelper;
 import org.chromium.chrome.browser.banners.AppBannerManager;
+import org.chromium.chrome.browser.externalnav.ExternalNavigationDelegateImpl;
+import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler;
+import org.chromium.chrome.browser.tab.InterceptNavigationDelegateImpl;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabDelegateFactory;
 import org.chromium.content_public.browser.LoadUrlParams;
@@ -47,6 +50,15 @@ public class WebApkActivity extends WebappActivity {
     protected TabDelegateFactory createTabDelegateFactory() {
         return new WebappDelegateFactory(this) {
             @Override
+            public InterceptNavigationDelegateImpl createInterceptNavigationDelegate(Tab tab) {
+                String webApkPackage = getWebappInfo().webApkPackageName();
+                ExternalNavigationDelegateImpl externalNavDelegate =
+                        new ExternalNavigationDelegateImpl(tab, webApkPackage);
+                return new InterceptNavigationDelegateImpl(
+                        new ExternalNavigationHandler(externalNavDelegate), tab);
+            }
+
+            @Override
             public AppBannerManager createAppBannerManager(Tab tab) {
                 return null;
             }