Add a PhysicalWebIgnoreOtherClients feature

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/UrlManager.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.physicalweb;
 
 import android.app.AlarmManager;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
@@ skipping 449 matching lines @@
         // This is useful for tracking whether a notification is pressed soon after an update or
         // much later.
         SharedPreferences prefs = ContextUtils.getAppSharedPreferences();
         SharedPreferences.Editor editor = prefs.edit();
         editor.putLong(PREFS_NOTIFICATION_UPDATE_TIMESTAMP, SystemClock.elapsedRealtime());
         editor.apply();
     }
 
     private void showNotification() {
         // We should only show notifications if there's no other notification-based client.
-        if (PhysicalWebEnvironment
-                .getInstance((ChromeApplication) mContext.getApplicationContext())
-                .hasNotificationBasedClient()) {
+        if (!PhysicalWeb.shouldIgnoreOtherClients()
+                && PhysicalWebEnvironment
+                        .getInstance((ChromeApplication) mContext.getApplicationContext())
+                        .hasNotificationBasedClient()) {
             return;
         }
 
         if (PhysicalWeb.isOnboarding(mContext)) {
             if (PhysicalWeb.getOptInNotifyCount(mContext) < PhysicalWeb.OPTIN_NOTIFY_MAX_TRIES) {
                 // high priority notification
                 createOptInNotification(true);
                 PhysicalWeb.recordOptInNotification(mContext);
                 PhysicalWebUma.onOptInHighPriorityNotificationShown(mContext);
             } else {
@@ skipping 151 matching lines @@
                 || mResolvedUrls.contains(url)
                 || mUrlInfoMap.containsKey(url)
                 || mUrlsSortedByTimestamp.contains(url);
     }
 
     @VisibleForTesting
     int getMaxCacheSize() {
         return MAX_CACHE_SIZE;
     }
 }