Rename shell namespace to service_manager

ios/web/public/test/test_web_state.mm

 // Copyright 2014 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.
 
 #include "ios/web/public/test/test_web_state.h"
 
 #include <stdint.h>
 
 #include "base/callback.h"
 
@@ skipping 124 matching lines @@
 }
 
 int TestWebState::DownloadImage(const GURL& url,
                                 bool is_favicon,
                                 uint32_t max_bitmap_size,
                                 bool bypass_cache,
                                 const ImageDownloadCallback& callback) {
   return 0;
 }
 
-shell::InterfaceRegistry* TestWebState::GetMojoInterfaceRegistry() {
+service_manager::InterfaceRegistry* TestWebState::GetMojoInterfaceRegistry() {
   return nullptr;
 }
 
 base::WeakPtr<WebState> TestWebState::AsWeakPtr() {
   NOTREACHED();
   return base::WeakPtr<WebState>();
 }
 
 }  // namespace web