Remove support for special "sign in process" state.

chrome/browser/extensions/chrome_content_browser_client_extensions_part.cc

 // 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 "chrome/browser/extensions/chrome_content_browser_client_extensions_part.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 355 matching lines @@
 
     if (!WebAccessibleResourcesInfo::IsResourceWebAccessible(
             extension, to_url.path())) {
       *result = false;
       return true;
     }
   }
   return false;
 }
 
-// static
-void ChromeContentBrowserClientExtensionsPart::SetSigninProcess(
-    content::SiteInstance* site_instance) {
-  Profile* profile =
-      Profile::FromBrowserContext(site_instance->GetBrowserContext());
-  DCHECK(profile);
-  BrowserThread::PostTask(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(&InfoMap::SetSigninProcess,
-                 ExtensionSystem::Get(profile)->info_map(),
-                 site_instance->GetProcess()->GetID()));
-}
-
 void ChromeContentBrowserClientExtensionsPart::RenderProcessWillLaunch(
     content::RenderProcessHost* host) {
   int id = host->GetID();
   Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
 
   host->AddFilter(new ChromeExtensionMessageFilter(id, profile));
   host->AddFilter(new ExtensionMessageFilter(id, profile));
   host->AddFilter(new IOThreadExtensionMessageFilter(id, profile));
   host->AddFilter(new GuestViewMessageFilter(id, profile));
   extension_web_request_api_helpers::SendExtensionWebRequestStatusToHost(host);
@@ skipping 121 matching lines @@
     command_line->AppendSwitch(::switches::kEnableWebRtcHWH264Encoding);
 #endif
     if (base::CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kEnableMojoSerialService)) {
       command_line->AppendSwitch(switches::kEnableMojoSerialService);
     }
   }
 }
 
 }  // namespace extensions