Implement one click login.

chrome/browser/ui/tab_contents/tab_contents_wrapper.cc

Index: chrome/browser/ui/tab_contents/tab_contents_wrapper.cc
===================================================================
--- chrome/browser/ui/tab_contents/tab_contents_wrapper.cc	(revision 123466)
+++ chrome/browser/ui/tab_contents/tab_contents_wrapper.cc	(working copy)
@@ -27,6 +27,8 @@
 #include "chrome/browser/printing/print_view_manager.h"
 #include "chrome/browser/safe_browsing/safe_browsing_tab_observer.h"
 #include "chrome/browser/sessions/restore_tab_helper.h"
+#include "chrome/browser/signin/one_click_signin.h"
+#include "chrome/browser/signin/token_service.h"
 #include "chrome/browser/tab_contents/tab_contents_ssl_helper.h"
 #include "chrome/browser/tab_contents/thumbnail_generator.h"
 #include "chrome/browser/translate/translate_tab_helper.h"
@@ -128,6 +130,13 @@
     thumbnail_generation_observer_.reset(new ThumbnailGenerator);
     thumbnail_generation_observer_->StartThumbnailing(web_contents_.get());
   }
+
+  // If the profile is not already connected to a Google account and this is
+  // not an incognito window, setup to handle one-click login.
+#if !defined(OS_CHROMEOS)
+  if (OneClickSigninManager::CanOffer(contents))
+      one_click_signin_manager_.reset(new OneClickSigninManager(contents));
+#endif
 }
 
 TabContentsWrapper::~TabContentsWrapper() {