Integrate UI and reset logic into 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.
 
 #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 "chrome/browser/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.
 // The primary reason for this separation is to facilitate unit testing.
@@ skipping 11 matching lines @@
       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 containing 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.
+  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 returned attributes correspond in meaning and format to the user
   // preferences stored by TemplateURLService::SaveDefaultSearchProviderToPrefs,
   // and will be named after the second path name segment of the respective
   // preference (i.e. the part after "default_search_provider.").
   // Note that:
   //  1.) the "enabled" attribute will not be present, as it is not technically
   //      an attribute of a search provider,
   //  2.) "encodings" will be a list of strings, in contrast to a single string
   //      with tokens delimited by semicolons, but the order will be the same.
   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.
-  virtual void ShowPrompt() = 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 ShowPrompt() = 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
+  // active. Will synchronously destroy the corresponding GlobalError.
+  virtual void DismissPrompt() = 0;
 };
 
 // Implementation for AutomaticProfileResetterDelegate.
-// To facilitate unit testing, having the TemplateURLService available is only
-// required when using search engine related methods.
 class AutomaticProfileResetterDelegateImpl
     : public AutomaticProfileResetterDelegate,
+      public base::SupportsWeakPtr<AutomaticProfileResetterDelegateImpl>,
       public TemplateURLServiceObserver,
       public content::NotificationObserver {
  public:
-  // The |template_url_service| may be NULL in unit tests. Must be non-NULL for
-  // callers who wish to call:
-  //  * LoadTemplateURLServiceIfNeeded(),
-  //  * GetDefaultSearchProviderDetails(),
-  //  * GetPrepopulatedSearchProvidersDetails(), or
-  //  * IsDefaultSearchManaged().
   explicit AutomaticProfileResetterDelegateImpl(
-      TemplateURLService* template_url_service);
+      Profile* profile,
+      ProfileResetter::ResettableFlags resettable_aspects);
   virtual ~AutomaticProfileResetterDelegateImpl();
 
+  // Exposed 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 void ShowPrompt() OVERRIDE;
+  virtual bool ShowPrompt() 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 fetched 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);
+
+  Profile* profile_;
+  GlobalErrorService* global_error_service_;
   TemplateURLService* template_url_service_;
 
+  scoped_ptr<BrandcodeConfigFetcher> brandcoded_config_fetcher_;
+  scoped_ptr<BrandcodedDefaultSettings> brandcoded_defaults_;
+
+  const ProfileResetter::ResettableFlags resettable_aspects_;
+  scoped_ptr<ProfileResetter> profile_resetter_;
+
   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
+  // downloaded, or 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_