Disconnect one click sign in code. The code itself will be removed in followup

chrome/browser/ui/tab_helpers.cc

Index: chrome/browser/ui/tab_helpers.cc
diff --git a/chrome/browser/ui/tab_helpers.cc b/chrome/browser/ui/tab_helpers.cc
index 30d4da1d26e4473f1b74a425108c75df75048bea..19fb99696300c63e76e5d275950502831aec8dc3 100644
--- a/chrome/browser/ui/tab_helpers.cc
+++ b/chrome/browser/ui/tab_helpers.cc
@@ -36,7 +36,6 @@
 #include "components/autofill/core/browser/autofill_manager.h"
 #include "components/dom_distiller/content/web_contents_main_frame_observer.h"
 #include "components/password_manager/core/browser/password_manager.h"
-#include "components/signin/core/common/profile_management_switches.h"
 #include "content/public/browser/web_contents.h"
 
 #if defined(OS_ANDROID)
@@ -87,10 +86,6 @@
 #endif  // defined(ENABLE_PRINT_PREVIEW)
 #endif  // defined(ENABLE_PRINTING)
 
-#if defined(ENABLE_ONE_CLICK_SIGNIN)
-#include "chrome/browser/ui/sync/one_click_signin_helper.h"
-#endif
-
 using content::WebContents;
 
 namespace {
@@ -221,21 +216,6 @@ void TabHelpers::AttachTabHelpers(WebContents* web_contents) {
         web_contents);
   }
 
-#if defined(ENABLE_ONE_CLICK_SIGNIN)
-  // If this is not an incognito window, setup to handle one-click login.
-  // We don't want to check that the profile is already connected at this time
-  // because the connected state may change while this tab is open.  Having a
-  // one-click signin helper attached does not cause problems if the profile
-  // happens to be already connected.
-  if (switches::IsEnableWebBasedSignin() &&
-      OneClickSigninHelper::CanOffer(web_contents,
-                                     OneClickSigninHelper::CAN_OFFER_FOR_ALL,
-                                     std::string(),
-                                     NULL)) {
-    OneClickSigninHelper::CreateForWebContents(web_contents);
-  }
-#endif
-
   if (predictors::ResourcePrefetchPredictorFactory::GetForProfile(
       web_contents->GetBrowserContext())) {
     predictors::ResourcePrefetchPredictorTabHelper::CreateForWebContents(