Revert 284958 "Make HistoryDBTask not refcounted, and ensure it'..."

trunk/src/chrome/browser/ui/webui/signin/inline_login_handler_impl.cc

Index: trunk/src/chrome/browser/ui/webui/signin/inline_login_handler_impl.cc
===================================================================
--- trunk/src/chrome/browser/ui/webui/signin/inline_login_handler_impl.cc	(revision 285001)
+++ trunk/src/chrome/browser/ui/webui/signin/inline_login_handler_impl.cc	(working copy)
@@ -38,7 +38,8 @@
 
 namespace {
 
-class InlineSigninHelper : public SigninOAuthHelper::Consumer {
+class InlineSigninHelper : public SigninOAuthHelper,
+                           public SigninOAuthHelper::Consumer {
  public:
   InlineSigninHelper(
       base::WeakPtr<InlineLoginHandlerImpl> handler,
@@ -60,7 +61,6 @@
   virtual void OnSigninOAuthInformationFailure(
       const GoogleServiceAuthError& error) OVERRIDE;
 
-  SigninOAuthHelper signin_oauth_helper_;
   base::WeakPtr<InlineLoginHandlerImpl> handler_;
   Profile* profile_;
   GURL current_url_;
@@ -82,8 +82,7 @@
     const std::string& session_index,
     const std::string& signin_scoped_device_id,
     bool choose_what_to_sync)
-    : signin_oauth_helper_(getter, session_index, signin_scoped_device_id,
-                           this),
+    : SigninOAuthHelper(getter, session_index, signin_scoped_device_id, this),
       handler_(handler),
       profile_(profile),
       current_url_(current_url),