Eliminate all code related to the AutomaticProfileResetter.

chrome/browser/profile_resetter/automatic_profile_resetter_delegate.h

-// Copyright 2013 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.
-
-// Declares a delegate that interacts with the rest of the browser on behalf of
-// the AutomaticProfileResetter.
-//
-// The reason for this separation is to facilitate unit testing. Factoring out
-// the implementation for each interaction step (encapsulated by one method of
-// the delegate) allows it to be tested independently in itself. It also becomes
-// easier to verify that the state machine inside AutomaticProfileResetter works
-// correctly: by mocking out the interaction methods in the delegate, we can, in
-// effect, mock out the entire rest of the browser, allowing us to easily
-// simulate scenarios that are interesting for testing the state machine.
-//
-// The delegate is normally instantiated by AutomaticProfileResetter internally,
-// while a mock implementation can be injected during unit tests.
-
-#ifndef CHROME_BROWSER_PROFILE_RESETTER_AUTOMATIC_PROFILE_RESETTER_DELEGATE_H_
-#define CHROME_BROWSER_PROFILE_RESETTER_AUTOMATIC_PROFILE_RESETTER_DELEGATE_H_
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/profile_resetter/profile_resetter.h"
-#include "components/search_engines/template_url_service_observer.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "extensions/common/one_shot_event.h"
-
-class BrandcodeConfigFetcher;
-class GlobalErrorService;
-class Profile;
-class ResettableSettingsSnapshot;
-class TemplateURLService;
-
-namespace base {
-class DictionaryValue;
-class ListValue;
-}
-
-// Defines the interface for the delegate that will interact with the rest of
-// the browser on behalf of the AutomaticProfileResetter.
-class AutomaticProfileResetterDelegate {
- public:
-  virtual ~AutomaticProfileResetterDelegate() {}
-
-  // Requests the module enumerator to start scanning for loaded modules now, if
-  // it has not done so already.
-  virtual void EnumerateLoadedModulesIfNeeded() = 0;
-
-  // Requests |ready_callback| to be posted on the UI thread once the module
-  // enumerator has finished scanning for loaded modules.
-  virtual void RequestCallbackWhenLoadedModulesAreEnumerated(
-      const base::Closure& ready_callback) const = 0;
-
-  // Requests the template URL service to load its database (asynchronously).
-  virtual void LoadTemplateURLServiceIfNeeded() = 0;
-
-  // Requests |ready_callback| to be posted on the UI thread once the template
-  // URL service has finished loading its database.
-  virtual void RequestCallbackWhenTemplateURLServiceIsLoaded(
-      const base::Closure& ready_callback) const = 0;
-
-  // Starts downloading the configuration file that specifies the default
-  // settings for the current brandcode; or establishes that we are running a
-  // vanilla (non-branded) build.
-  virtual void FetchBrandcodedDefaultSettingsIfNeeded() = 0;
-
-  // Requests |ready_callback| to be posted on the UI thread once the brandcoded
-  // default settings have been downloaded, or once it has been established that
-  // we are running a vanilla (non-branded) build.
-  virtual void RequestCallbackWhenBrandcodedDefaultsAreFetched(
-      const base::Closure& ready_callback) const = 0;
-
-  // Returns a list of loaded module name digests.
-  virtual scoped_ptr<base::ListValue> GetLoadedModuleNameDigests() const = 0;
-
-  // Returns attributes of the search engine currently set as the default (or
-  // an empty dictionary if there is none).
-  // The dictionary is in the same format as persisted to preferences by
-  // DefaultSearchManager::SetUserSelectedDefaultSearchEngine.
-  virtual scoped_ptr<base::DictionaryValue>
-      GetDefaultSearchProviderDetails() const = 0;
-
-  // Returns whether or not the default search provider is set by policy.
-  virtual bool IsDefaultSearchProviderManaged() const = 0;
-
-  // Returns a list of dictionaries, each containing attributes for each of the
-  // pre-populated search engines, in the format described above.
-  virtual scoped_ptr<base::ListValue>
-      GetPrepopulatedSearchProvidersDetails() const = 0;
-
-  // Triggers showing the one-time profile settings reset prompt, which consists
-  // of two parts: (1.) the profile reset (pop-up) bubble, and (2.) a menu item
-  // in the wrench menu. Showing the bubble might be delayed if there is another
-  // bubble currently shown, in which case the bubble will be shown the first
-  // time a new browser window is opened.
-  // Returns true unless the reset prompt is not supported on the current
-  // platform, in which case it returns false and does nothing.
-  virtual bool TriggerPrompt() = 0;
-
-  // Triggers the ProfileResetter to reset all supported settings and optionally
-  // |send_feedback|. Will post |completion| on the UI thread once completed.
-  // Brandcoded default settings will be fetched if they are not yet available,
-  // the reset will be performed once the download is complete.
-  // NOTE: Should only be called at most once during the lifetime of the object.
-  virtual void TriggerProfileSettingsReset(bool send_feedback,
-                                           const base::Closure& completion) = 0;
-
-  // Dismisses the one-time profile settings reset prompt, if it is currently
-  // triggered. Will synchronously destroy the corresponding GlobalError.
-  virtual void DismissPrompt() = 0;
-};
-
-// Implementation for AutomaticProfileResetterDelegate.
-class AutomaticProfileResetterDelegateImpl
-    : public AutomaticProfileResetterDelegate,
-      public base::SupportsWeakPtr<AutomaticProfileResetterDelegateImpl>,
-      public TemplateURLServiceObserver,
-      public content::NotificationObserver {
- public:
-  explicit AutomaticProfileResetterDelegateImpl(
-      Profile* profile,
-      ProfileResetter::ResettableFlags resettable_aspects);
-  virtual ~AutomaticProfileResetterDelegateImpl();
-
-  // Returns the brandcoded default settings; empty defaults if this is not a
-  // branded build; or NULL if FetchBrandcodedDefaultSettingsIfNeeded() has not
-  // yet been called or not yet finished. Exposed only for unit tests.
-  const BrandcodedDefaultSettings* brandcoded_defaults() const {
-    return brandcoded_defaults_.get();
-  }
-
-  // AutomaticProfileResetterDelegate:
-  virtual void EnumerateLoadedModulesIfNeeded() OVERRIDE;
-  virtual void RequestCallbackWhenLoadedModulesAreEnumerated(
-      const base::Closure& ready_callback) const OVERRIDE;
-  virtual void LoadTemplateURLServiceIfNeeded() OVERRIDE;
-  virtual void RequestCallbackWhenTemplateURLServiceIsLoaded(
-      const base::Closure& ready_callback) const OVERRIDE;
-  virtual void FetchBrandcodedDefaultSettingsIfNeeded() OVERRIDE;
-  virtual void RequestCallbackWhenBrandcodedDefaultsAreFetched(
-      const base::Closure& ready_callback) const OVERRIDE;
-  virtual scoped_ptr<base::ListValue>
-      GetLoadedModuleNameDigests() const OVERRIDE;
-  virtual scoped_ptr<base::DictionaryValue>
-      GetDefaultSearchProviderDetails() const OVERRIDE;
-  virtual bool IsDefaultSearchProviderManaged() const OVERRIDE;
-  virtual scoped_ptr<base::ListValue>
-      GetPrepopulatedSearchProvidersDetails() const OVERRIDE;
-  virtual bool TriggerPrompt() OVERRIDE;
-  virtual void TriggerProfileSettingsReset(
-      bool send_feedback,
-      const base::Closure& completion) OVERRIDE;
-  virtual void DismissPrompt() OVERRIDE;
-
-  // TemplateURLServiceObserver:
-  virtual void OnTemplateURLServiceChanged() OVERRIDE;
-
-  // content::NotificationObserver:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
- private:
-  // Sends a feedback |report|, where |report| is supposed to be result of
-  // ::SerializeSettingsReport(). Virtual, so it can be mocked out for tests.
-  virtual void SendFeedback(const std::string& report) const;
-
-  // Triggers the ProfileResetter to reset |resettable_aspects_| and optionally
-  // |send_feedback|. Will invoke |completion| on the UI thread once completed
-  // The |brandcoded_defaults_| must already be initialized when this is called.
-  void RunProfileSettingsReset(bool send_feedback,
-                               const base::Closure& completion);
-
-  // Called by |brandcoded_config_fetcher_| when it finishes downloading the
-  // brandcoded default settings (or the download times out).
-  void OnBrandcodedDefaultsFetched();
-
-  // Called back by the ProfileResetter once resetting the profile settings has
-  // been completed. If |old_settings_snapshot| is non-NULL, will compare it to
-  // the new settings and send the differences to Google for analysis. Finally,
-  // will post |user_callback|.
-  void OnProfileSettingsResetCompleted(
-      const base::Closure& user_callback,
-      scoped_ptr<ResettableSettingsSnapshot> old_settings_snapshot);
-
-  // The profile that this delegate operates on.
-  Profile* profile_;
-
-  // Shortcuts to |profile_| keyed services, to reduce boilerplate. These may be
-  // NULL in unit tests that do not initialize the respective service(s).
-  GlobalErrorService* global_error_service_;
-  TemplateURLService* template_url_service_;
-
-  // Helper to asynchronously download the default settings for the current
-  // distribution channel (identified by brand code). Instantiated on-demand.
-  scoped_ptr<BrandcodeConfigFetcher> brandcoded_config_fetcher_;
-
-  // Once |brandcoded_defaults_fetched_event_| has fired, this will contain the
-  // brandcoded default settings, or empty settings for a non-branded build.
-  scoped_ptr<BrandcodedDefaultSettings> brandcoded_defaults_;
-
-  // Overwritten to avoid resetting aspects that will not work in unit tests.
-  const ProfileResetter::ResettableFlags resettable_aspects_;
-
-  // The profile resetter to perform the actual reset. Instantiated on-demand.
-  scoped_ptr<ProfileResetter> profile_resetter_;
-
-  // Manages registrations/unregistrations for notifications.
-  content::NotificationRegistrar registrar_;
-
-  // The list of modules found. Even when |modules_have_been_enumerated_event_|
-  // is signaled, this may still be NULL.
-  scoped_ptr<base::ListValue> module_list_;
-
-  // This event is signaled once module enumeration has been attempted. If
-  // during construction, EnumerateModulesModel can supply a non-empty list of
-  // modules, module enumeration has clearly already happened, so the event will
-  // be signaled immediately; otherwise, when EnumerateLoadedModulesIfNeeded()
-  // is called, it will ask the model to scan the modules, and then signal the
-  // event once this process is completed.
-  extensions::OneShotEvent modules_have_been_enumerated_event_;
-
-  // This event is signaled once the TemplateURLService has loaded.  If the
-  // TemplateURLService was already loaded prior to the creation of this class,
-  // the event will be signaled during construction.
-  extensions::OneShotEvent template_url_service_ready_event_;
-
-  // This event is signaled once brandcoded default settings have been fetched,
-  // or once it has been established that this is not a branded build.
-  extensions::OneShotEvent brandcoded_defaults_fetched_event_;
-
-  DISALLOW_COPY_AND_ASSIGN(AutomaticProfileResetterDelegateImpl);
-};
-
-#endif  // CHROME_BROWSER_PROFILE_RESETTER_AUTOMATIC_PROFILE_RESETTER_DELEGATE_H_