Instant apps: cleanup an unused parameter.

chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandler.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.externalnav;
 
 import android.content.ActivityNotFoundException;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
@@ skipping 439 matching lines @@
                                     mDelegate.queryIntentActivities(previousIntent))) {
                         return OverrideUrlLoadingResult.NO_OVERRIDE;
                     }
                 }
             }
         }
 
         boolean isDirectInstantAppsIntent = isExternalProtocol
                 && SUPERVISOR_PKG.equals(intent.getPackage());
         boolean shouldProxyForInstantApps = isDirectInstantAppsIntent
-                && mDelegate.isSerpReferrer(params.getReferrerUrl(), params.getTab());
+                && mDelegate.isSerpReferrer(params.getTab());
         if (shouldProxyForInstantApps) {
             intent.putExtra(InstantAppsHandler.IS_GOOGLE_SEARCH_REFERRER, true);
         } else if (isDirectInstantAppsIntent) {
             // For security reasons, we disable all intent:// URLs to Instant Apps that are
             // not coming from SERP.
             return OverrideUrlLoadingResult.NO_OVERRIDE;
         } else {
             // Make sure this extra is not sent unless we've done the verification.
             intent.removeExtra(InstantAppsHandler.IS_GOOGLE_SEARCH_REFERRER);
         }
@@ skipping 118 matching lines @@
         if (defaultSmsPackageName == null) return null;
         // Makes sure that the default SMS app actually resolves the intent.
         for (ResolveInfo resolveInfo : resolvingComponentNames) {
             if (defaultSmsPackageName.equals(resolveInfo.activityInfo.packageName)) {
                 return defaultSmsPackageName;
             }
         }
         return null;
     }
 }