[Signin] Factor out a helper class to load a continue URL once Sync is configured.

chrome/browser/ui/sync/one_click_signin_helper.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_
 #define CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
@@ skipping 26 matching lines @@
 class URLRequest;
 }
 
 // Per-tab one-click signin helper.  When a user signs in to a Google service
 // and the profile is not yet connected to a Google account, will start the
 // process of helping the user connect his profile with one click.  The process
 // begins with an infobar and is followed with a confirmation dialog explaining
 // more about what this means.
 class OneClickSigninHelper
     : public content::WebContentsObserver,
-      public content::WebContentsUserData<OneClickSigninHelper>,
-      public ProfileSyncServiceObserver {
+      public content::WebContentsUserData<OneClickSigninHelper> {
  public:
   // Represents user's decision about sign in process.
   enum AutoAccept {
     // User decision not yet known.  Assume cancel.
     AUTO_ACCEPT_NONE,
 
     // User has explicitly accepted to sign in.  A bubble is shown with the
     // option to start sync, configure it first, or abort.
     AUTO_ACCEPT_ACCEPTED,
 
@@ skipping 187 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIncognitoTest,
                            ShowInfoBarUIThreadIncognito);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperTest,
                            SigninFromWebstoreWithConfigSyncfirst);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperTest,
                            ShowSigninBubbleAfterSigninComplete);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperTest, SigninCancelled);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperTest, SigninFailed);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperTest,
                            CleanTransientStateOnNavigate);
-  FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperTest,
-                           RemoveObserverFromProfileSyncService);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest, CanOfferOnIOThread);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
                            CanOfferOnIOThreadIncognito);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
                            CanOfferOnIOThreadNoIOData);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
                            CanOfferOnIOThreadBadURL);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
                            CanOfferOnIOThreadDisabled);
   FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
@@ skipping 67 matching lines @@
 
   // content::WebContentsObserver overrides.
   virtual void DidStartNavigationToPendingEntry(
       const GURL& url,
       content::NavigationController::ReloadType reload_type) OVERRIDE;
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
   virtual void DidStopLoading(
       content::RenderViewHost* render_view_host) OVERRIDE;
-  virtual void WebContentsDestroyed(content::WebContents* contents) OVERRIDE;
-
-  // ProfileSyncServiceObserver.
-  virtual void OnStateChanged() OVERRIDE;
 
   OneClickSigninSyncStarter::Callback CreateSyncStarterCallback();
 
   // Callback invoked when OneClickSigninSyncStarter completes sync setup.
   void SyncSetupCompletedCallback(
       OneClickSigninSyncStarter::SyncSetupResult result);
 
   // Tracks if we are in the process of showing the signin or one click
   // interstitial page. It's set to true the first time we load one of those
   // pages and set to false when transient state is cleaned.
@@ skipping 30 matching lines @@
 
   // Allows unittest to avoid starting sync for real.
   bool do_not_start_sync_for_testing_;
 
   base::WeakPtrFactory<OneClickSigninHelper> weak_pointer_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OneClickSigninHelper);
 };
 
 #endif  // CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_