Remove support for special "sign in process" state.

extensions/browser/api/web_request/web_request_permissions.cc

 // Copyright (c) 2012 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 "extensions/browser/api/web_request/web_request_permissions.h"
 
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "content/public/browser/resource_request_info.h"
 #include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
@@ skipping 70 matching lines @@
     const extensions::InfoMap* extension_info_map,
     const net::URLRequest* request) {
   // Hide requests from the Chrome WebStore App or signin process.
   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
   if (info) {
     int process_id = info->GetChildID();
     // Never hide requests from guest processes.
     if (extensions::WebViewRendererState::GetInstance()->IsGuest(process_id))
       return false;
 
-    if (extension_info_map && (
-        extension_info_map->IsSigninProcess(process_id) ||
-        extension_info_map->process_map().Contains(
-            extensions::kWebStoreAppId, process_id))) {
+    if (extension_info_map &&
+        extension_info_map->process_map().Contains(extensions::kWebStoreAppId,
+                                                   process_id)) {
       return true;
     }
   }
 
   const GURL& url = request->url();
   return IsSensitiveURL(url) || !HasWebRequestScheme(url);
 }
 
 // static
 bool WebRequestPermissions::CanExtensionAccessURL(
@@ skipping 28 matching lines @@
       }
       break;
     case REQUIRE_ALL_URLS:
       if (!extension->permissions_data()->HasEffectiveAccessToAllHosts())
         return false;
       break;
   }
 
   return true;
 }