Physical Web toggle should render as Off with pref in Default state

ios/chrome/browser/ui/settings/physical_web_collection_view_controller.mm

 // 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.
 
 #import "ios/chrome/browser/ui/settings/physical_web_collection_view_controller.h"
 
 #import <CoreLocation/CoreLocation.h>
 
 #import "base/ios/weak_nsobject.h"
 #import "base/mac/foundation_util.h"
@@ skipping 67 matching lines @@
 }
 
 - (instancetype)initWithStyle:(CollectionViewControllerStyle)style {
   NOTREACHED();
   return nil;
 }
 
 #pragma mark - Preference switch
 
 + (BOOL)shouldEnableForPreferenceState:(int)preferenceState {
-  // In the default (onboarding) state, render the preference as On if the
-  // location app permission is granted.
-  if (preferenceState == physical_web::kPhysicalWebOnboarding) {
-    CLAuthorizationStatus authStatus = [CLLocationManager authorizationStatus];
-    return (authStatus == kCLAuthorizationStatusAuthorizedWhenInUse ||
-            authStatus == kCLAuthorizationStatusAuthorizedAlways);
-  }
-
+  // Render the preference as "on" only if the preference is explicitly enabled.
   return (preferenceState == physical_web::kPhysicalWebOn);
 }
 
 - (void)physicalWebSwitched:(UISwitch*)switchView {
   [self updatePhysicalWebEnabled:switchView.isOn];
 }
 
 - (void)updatePhysicalWebEnabled:(BOOL)enabled {
   _physicalWebEnabled.SetValue(enabled ? physical_web::kPhysicalWebOn
                                        : physical_web::kPhysicalWebOff);
@@ skipping 134 matching lines @@
   NSInteger type = [self.collectionViewModel itemTypeForIndexPath:indexPath];
   switch (type) {
     case ItemTypePhysicalWebSwitch:
       return YES;
     default:
       return NO;
   }
 }
 
 @end