Add a PhysicalWebIgnoreOtherClients feature

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWeb.java

Index: chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWeb.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWeb.java b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWeb.java
index 63b25af5af7f11f0b7109d85a1040b695166f459..d089d1e6016f637dd1ffded8e64e765f5e886ba7 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWeb.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWeb.java
@@ -20,7 +20,9 @@ import org.chromium.chrome.browser.preferences.privacy.PrivacyPreferencesManager
 public class PhysicalWeb {
     public static final int OPTIN_NOTIFY_MAX_TRIES = 1;
     private static final String PREF_PHYSICAL_WEB_NOTIFY_COUNT = "physical_web_notify_count";
+    private static final String PREF_IGNORE_OTHER_CLIENTS = "physical_web_ignore_other_clients";
     private static final String FEATURE_NAME = "PhysicalWeb";
+    private static final String IGNORE_OTHER_CLIENTS_FEATURE_NAME = "PhysicalWebIgnoreOtherClients";
     private static final int MIN_ANDROID_VERSION = 18;
 
     /**
@@ -78,6 +80,15 @@ public class PhysicalWeb {
     }
 
     /**
+     * Returns true if we should fire notifications regardless of the existence of other Physical
+     * Web clients.
+     * This method is for use when the native library is not available.
+     */
+    public static boolean shouldIgnoreOtherClients() {
+        return ContextUtils.getAppSharedPreferences().getBoolean(PREF_IGNORE_OTHER_CLIENTS, false);
+    }
+
+    /**
      * Increments a value tracking how many times we've shown the Physical Web
      * opt-in notification.
      *
@@ -112,6 +123,11 @@ public class PhysicalWeb {
         // loaded.  This is always the case on chrome startup.
         if (featureIsEnabled()
                 && (isPhysicalWebPreferenceEnabled(application) || isOnboarding(application))) {
+            boolean ignoreOtherClients =
+                    ChromeFeatureList.isEnabled(IGNORE_OTHER_CLIENTS_FEATURE_NAME);
+            ContextUtils.getAppSharedPreferences().edit()
+                    .putBoolean(PREF_IGNORE_OTHER_CLIENTS, ignoreOtherClients)
+                    .apply();
             startPhysicalWeb(application);
             PhysicalWebUma.uploadDeferredMetrics(application);
         } else {