Fix regression: only clear sign-in process for navigations in that process.

chrome/browser/ui/sync/one_click_signin_helper.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 "chrome/browser/ui/sync/one_click_signin_helper.h"
 
 #include <algorithm>
 #include <functional>
 #include <utility>
 #include <vector>
@@ skipping 983 matching lines @@
 void OneClickSigninHelper::DidNavigateMainFrame(
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
   // If we navigate to a non-sign-in URL, make sure that the renderer process
   // is no longer considered the trusted sign-in process.
   if (!SigninManager::IsWebBasedSigninFlowURL(params.url)) {
     Profile* profile =
         Profile::FromBrowserContext(web_contents()->GetBrowserContext());
     SigninManager* manager = profile ?
         SigninManagerFactory::GetForProfile(profile) : NULL;
-    if (manager)
+    int process_id = web_contents()->GetRenderProcessHost()->GetID();
+    if (manager && manager->IsSigninProcess(process_id))
       manager->ClearSigninProcess();
   }
 }
 
 void OneClickSigninHelper::DidStopLoading(
     content::RenderViewHost* render_view_host) {
   // If the user left the sign in process, clear all members.
   // TODO(rogerta): might need to allow some youtube URLs.
   content::WebContents* contents = web_contents();
   const GURL url = contents->GetURL();
@@ skipping 243 matching lines @@
     contents->GetController().LoadURL(redirect_url_,
                                       content::Referrer(),
                                       content::PAGE_TRANSITION_AUTO_TOPLEVEL,
                                       std::string());
   }
 
   // Clear the redirect URL.
   redirect_url_ = GURL();
   sync_service->RemoveObserver(this);
 }