Remove OneClickSigninHelper since it is no longer used.

chrome/browser/ui/sync/one_click_signin_helper.h

Index: chrome/browser/ui/sync/one_click_signin_helper.h
diff --git a/chrome/browser/ui/sync/one_click_signin_helper.h b/chrome/browser/ui/sync/one_click_signin_helper.h
deleted file mode 100644
index 335ad333f65b495ee8a6a3c3ee4deee7471ac9d1..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/sync/one_click_signin_helper.h
+++ /dev/null
@@ -1,380 +0,0 @@
-// 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"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/signin/signin_promo.h"
-#include "chrome/browser/sync/profile_sync_service_observer.h"
-#include "chrome/browser/ui/sync/one_click_signin_sync_starter.h"
-#include "components/signin/core/browser/signin_oauth_helper.h"
-#include "content/public/browser/navigation_controller.h"
-#include "content/public/browser/web_contents_observer.h"
-#include "content/public/browser/web_contents_user_data.h"
-#include "google_apis/gaia/google_service_auth_error.h"
-
-class Browser;
-class GURL;
-class ProfileIOData;
-
-namespace autofill {
-struct PasswordForm;
-}
-
-namespace content {
-class WebContents;
-struct FrameNavigateParams;
-struct LoadCommittedDetails;
-}
-
-namespace net {
-class URLRequest;
-}
-
-namespace password_manager {
-class PasswordManager;
-}
-
-// 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:
-  // 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,
-
-    // User has explicitly accepted to sign in, but wants to configure sync
-    // settings before turning it on.
-    AUTO_ACCEPT_CONFIGURE,
-
-    // User has explicitly rejected to sign in.  Furthermore, the user does
-    // not want to be prompted to see the interstitial again in this profile.
-    AUTO_ACCEPT_REJECTED_FOR_PROFILE,
-
-    // This is an explicit sign in from either first run, NTP, wrench menu,
-    // or settings page.  The user will be signed in automatically with sync
-    // enabled using default settings.
-    AUTO_ACCEPT_EXPLICIT
-  };
-
-  // Return value of CanOfferOnIOThread().
-  enum Offer {
-    CAN_OFFER,
-    DONT_OFFER,
-    IGNORE_REQUEST
-  };
-
-  // Argument to CanOffer().
-  enum CanOfferFor {
-    CAN_OFFER_FOR_ALL,
-    CAN_OFFER_FOR_INTERSTITAL_ONLY,
-    CAN_OFFER_FOR_SECONDARY_ACCOUNT
-    // TODO(guohui): needs to handle adding secondary account through
-    // interstitial.
-  };
-
-  // Arguments used with StartSync function.  base::Bind() cannot support too
-  // many args for performance reasons, so they are packaged up into a struct.
-  struct StartSyncArgs {
-    // Default contructor for testing only.
-    StartSyncArgs();
-    StartSyncArgs(Profile* profile,
-                  Browser* browser,
-                  OneClickSigninHelper::AutoAccept auto_accept,
-                  const std::string& session_index,
-                  const std::string& email,
-                  const std::string& password,
-                  const std::string& refresh_token,
-                  content::WebContents* web_contents,
-                  bool untrusted_confirmation_required,
-                  signin_metrics::Source source,
-                  OneClickSigninSyncStarter::Callback callback);
-    ~StartSyncArgs();
-
-    Profile* profile;
-    Browser* browser;
-    OneClickSigninHelper::AutoAccept auto_accept;
-    std::string session_index;
-    std::string email;
-    std::string password;
-    std::string refresh_token;
-
-    // Web contents in which the sync setup page should be displayed,
-    // if necessary. Can be NULL.
-    content::WebContents* web_contents;
-
-    OneClickSigninSyncStarter::ConfirmationRequired confirmation_required;
-    signin_metrics::Source source;
-    OneClickSigninSyncStarter::Callback callback;
-  };
-
-  // Wrapper to call OneClickSigninSyncStarter after fetching the refresh token
-  // if needed.  Also verifies that the cookies are correct if no password is
-  // specified, and checks that the email from the cookies match the expected
-  // email address.
-  class SyncStarterWrapper : public SigninOAuthHelper::Consumer,
-                             public chrome::BrowserListObserver {
-   public:
-    SyncStarterWrapper(
-        const OneClickSigninHelper::StartSyncArgs& args,
-        OneClickSigninSyncStarter::StartSyncMode start_mode);
-    ~SyncStarterWrapper() override;
-
-    void Start();
-
-   private:
-    void VerifyGaiaCookiesBeforeSignIn();
-    void OnGaiaCookiesFetched(const std::string session_index,
-                              const net::CookieList& cookie_list);
-
-    // Virtual to be overridden in tests.
-    virtual void DisplayErrorBubble(const std::string& error_message);
-    virtual void StartSigninOAuthHelper();
-    virtual void StartOneClickSigninSyncStarter(
-        const std::string& email,
-        const std::string& refresh_token);
-
-    // Overriden from SigninOAuthHelper::Consumer.
-    void OnSigninOAuthInformationAvailable(
-        const std::string& email,
-        const std::string& display_email,
-        const std::string& refresh_token) override;
-    void OnSigninOAuthInformationFailure(
-        const GoogleServiceAuthError& error) override;
-
-    // Overriden from chrome::BrowserListObserver.
-    void OnBrowserRemoved(Browser* browser) override;
-
-    OneClickSigninHelper::StartSyncArgs args_;
-    chrome::HostDesktopType desktop_type_;
-    OneClickSigninSyncStarter::StartSyncMode start_mode_;
-    scoped_ptr<SigninOAuthHelper> signin_oauth_helper_;
-    base::WeakPtrFactory<SyncStarterWrapper> weak_pointer_factory_;
-
-    DISALLOW_COPY_AND_ASSIGN(SyncStarterWrapper);
-  };
-
-  static void LogHistogramValue(int action);
-
-  // Returns true if the one-click signin feature can be offered at this time.
-  // If |email| is not empty, then the profile is checked to see if it's
-  // already connected to a google account or if the user has already rejected
-  // one-click sign-in with this email, in which cases a one click signin
-  // should not be offered.
-  //
-  // If |can_offer_for| is |CAN_OFFER_FOR_INTERSTITAL_ONLY|, then only do the
-  // checks that would affect the interstitial page.  Otherwise, do the checks
-  // that would affect the interstitial and the explicit sign ins.
-  //
-  // Returns in |error_message_id| an explanation as a string resource ID for
-  // why one-clicked cannot be offered.  |error_message_id| is valid only if
-  // the return value is false.  If no explanation is needed, |error_message_id|
-  // may be null.
-  static bool CanOffer(content::WebContents* web_contents,
-                       CanOfferFor can_offer_for,
-                       const std::string& email,
-                       std::string* error_message);
-
-  // Returns true if the one-click signin feature can be offered at this time.
-  // It can be offered if the io_data is not in an incognito window and if the
-  // origin of |url| is a valid Gaia sign in origin.  This function is meant
-  // to called only from the IO thread.
-  static Offer CanOfferOnIOThread(net::URLRequest* request,
-                                  ProfileIOData* io_data);
-
-  // Looks for the Google-Accounts-SignIn response header, and if found,
-  // tries to display an infobar in the tab contents identified by the
-  // child/route id.
-  static void ShowInfoBarIfPossible(net::URLRequest* request,
-                                    ProfileIOData* io_data,
-                                    int child_id,
-                                    int route_id);
-
-  // Handles cross account sign in error. If the supplied |email| does not match
-  // the last signed in email of the current profile, then Chrome will show a
-  // confirmation dialog before starting sync. It returns true if there is a
-  // cross account error, and false otherwise.
-  static bool HandleCrossAccountError(
-      Profile* profile,
-      const std::string& session_index,
-      const std::string& email,
-      const std::string& password,
-      const std::string& refresh_token,
-      OneClickSigninHelper::AutoAccept auto_accept,
-      signin_metrics::Source source,
-      OneClickSigninSyncStarter::StartSyncMode start_mode,
-      OneClickSigninSyncStarter::Callback sync_callback);
-
-  static void RedirectToNtpOrAppsPage(
-      content::WebContents* contents, signin_metrics::Source source);
-
-  // If the |source| is not settings page/webstore, redirects to
-  // the NTP/Apps page.
-  static void RedirectToNtpOrAppsPageIfNecessary(
-      content::WebContents* contents, signin_metrics::Source source);
-
-  // Remove the item currently at the top of the history list if it's
-  // the Gaia redirect URL. Due to limitations of the NavigationController
-  // this cannot be done until a new page becomes "current".
-  static void RemoveSigninRedirectURLHistoryItem(
-      content::WebContents* web_contents);
-
-  static void LogConfirmHistogramValue(int action);
-
- private:
-  friend class content::WebContentsUserData<OneClickSigninHelper>;
-  friend class OneClickSigninHelperTest;
-  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(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,
-                           CanOfferOnIOThreadSignedIn);
-  FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
-                           CanOfferOnIOThreadEmailNotAllowed);
-  FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
-                           CanOfferOnIOThreadEmailAlreadyUsed);
-  FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
-                           CreateTestProfileIOData);
-  FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
-                           CanOfferOnIOThreadWithRejectedEmail);
-  FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
-                           CanOfferOnIOThreadNoSigninCookies);
-  FRIEND_TEST_ALL_PREFIXES(OneClickSigninHelperIOTest,
-                           CanOfferOnIOThreadDisabledByPolicy);
-
-  // Maximum number of navigations away from the set of valid Gaia URLs before
-  // clearing the internal state of the helper.  This is necessary to support
-  // SAML-based accounts, but causes bug crbug.com/181163.
-  static const int kMaxNavigationsSince;
-
-  explicit OneClickSigninHelper(content::WebContents* web_contents);
-
-  ~OneClickSigninHelper() override;
-
-  // Returns true if the one-click signin feature can be offered at this time.
-  // It can be offered if the io_data is not in an incognito window and if the
-  // origin of |url| is a valid Gaia sign in origin.  This function is meant
-  // to called only from the IO thread.
-  static Offer CanOfferOnIOThreadImpl(const GURL& url,
-                                      base::SupportsUserData* request,
-                                      ProfileIOData* io_data);
-
-  // The portion of ShowInfoBarIfPossible() that needs to run on the UI thread.
-  // |session_index| and |email| are extracted from the Google-Accounts-SignIn
-  // header.  |auto_accept| is extracted from the Google-Chrome-SignIn header.
-  // |source| is used to determine which of the explicit sign in mechanism is
-  // being used.
-  //
-  // |continue_url| is where Gaia will continue to when the sign in process is
-  // done.  For explicit sign ins, this is a URL chrome controls. For one-click
-  // sign in, this could be any google property.  This URL is used to know
-  // when the sign process is over and to collect infomation from the user
-  // entered on the Gaia sign in page (for explicit sign ins).
-  static void ShowInfoBarUIThread(const std::string& session_index,
-                                  const std::string& email,
-                                  AutoAccept auto_accept,
-                                  signin_metrics::Source source,
-                                  const GURL& continue_url,
-                                  int child_id,
-                                  int route_id);
-
-  void RedirectToSignin();
-
-  // Clear all data member of the helper, except for the error.
-  void CleanTransientState();
-
-  // Unitests that use a TestingProfile should call this.
-  // Otherwise, clearing the pending e-mail crashes because the code expects
-  // a real ResourceContext rather than the MockResourceContext a
-  // TestingProfile provides.
-  void SetDoNotClearPendingEmailForTesting();
-
-  // In unit tests, disable starting the actual sync.
-  void set_do_not_start_sync_for_testing();
-
-  // Called when password has been submitted.
-  void PasswordSubmitted(const autofill::PasswordForm& form);
-
-  // content::WebContentsObserver overrides.
-  void DidStartNavigationToPendingEntry(
-      const GURL& url,
-      content::NavigationController::ReloadType reload_type) override;
-  void DidNavigateMainFrame(
-      const content::LoadCommittedDetails& details,
-      const content::FrameNavigateParams& params) override;
-  void DidStopLoading(content::RenderViewHost* render_view_host) override;
-
-  // 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.
-  // Note: This should only be used for logging purposes.
-  bool showing_signin_;
-
-  // Information about the account that has just logged in.
-  std::string session_index_;
-  std::string email_;
-  std::string password_;
-  AutoAccept auto_accept_;
-  signin_metrics::Source source_;
-  bool switched_to_advanced_;
-  GURL continue_url_;
-  // The orignal continue URL after sync setup is complete.
-  GURL original_continue_url_;
-  std::string error_message_;
-
-  // Number of navigations since starting a sign in that is outside the
-  // the set of trusted Gaia URLs.  Sign in attempts that include visits to
-  // one more untrusted will cause a modal dialog to appear asking the user
-  // to confirm, similar to the interstitial flow.
-  int untrusted_navigations_since_signin_visit_;
-
-  // Whether a Gaia URL during the sign in process was not handled by the
-  // dedicated sign in process (e.g. SAML login, which redirects to a
-  // non-google-controlled domain).
-  // This is set to true if at least one such URL is detected.
-  bool untrusted_confirmation_required_;
-
-  // Allows unittests to avoid accessing the ResourceContext for clearing a
-  // pending e-mail.
-  bool do_not_clear_pending_email_;
-
-  // 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_