Componentize TemplateURLPrepopulateData, DefaultSearchManager and DefaultSearchPolicyHandler

chrome/browser/search_engines/default_search_manager.h

Index: chrome/browser/search_engines/default_search_manager.h
diff --git a/chrome/browser/search_engines/default_search_manager.h b/chrome/browser/search_engines/default_search_manager.h
deleted file mode 100644
index 0a295c5cd7d27c243bdb45397f80273d44b6a38d..0000000000000000000000000000000000000000
--- a/chrome/browser/search_engines/default_search_manager.h
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright 2014 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_SEARCH_ENGINES_DEFAULT_SEARCH_MANAGER_H_
-#define CHROME_BROWSER_SEARCH_ENGINES_DEFAULT_SEARCH_MANAGER_H_
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/prefs/pref_change_registrar.h"
-
-namespace base {
-class DictionaryValue;
-}
-
-namespace user_prefs {
-class PrefRegistrySyncable;
-}
-
-class PrefService;
-class PrefValueMap;
-struct TemplateURLData;
-
-// DefaultSearchManager handles the loading and writing of the user's default
-// search engine selection to and from prefs.
-class DefaultSearchManager {
- public:
-  static const char kDefaultSearchProviderDataPrefName[];
-
-  static const char kID[];
-  static const char kShortName[];
-  static const char kKeyword[];
-  static const char kPrepopulateID[];
-  static const char kSyncGUID[];
-
-  static const char kURL[];
-  static const char kSuggestionsURL[];
-  static const char kInstantURL[];
-  static const char kImageURL[];
-  static const char kNewTabURL[];
-  static const char kFaviconURL[];
-  static const char kOriginatingURL[];
-
-  static const char kSearchURLPostParams[];
-  static const char kSuggestionsURLPostParams[];
-  static const char kInstantURLPostParams[];
-  static const char kImageURLPostParams[];
-
-  static const char kSafeForAutoReplace[];
-  static const char kInputEncodings[];
-
-  static const char kDateCreated[];
-  static const char kLastModified[];
-
-  static const char kUsageCount[];
-  static const char kAlternateURLs[];
-  static const char kSearchTermsReplacementKey[];
-  static const char kCreatedByPolicy[];
-  static const char kDisabledByPolicy[];
-
-  enum Source {
-    FROM_FALLBACK = 0,
-    FROM_USER,
-    FROM_EXTENSION,
-    FROM_POLICY,
-  };
-
-  typedef base::Callback<void(const TemplateURLData*, Source)> ObserverCallback;
-
-  DefaultSearchManager(PrefService* pref_service,
-                       const ObserverCallback& change_observer);
-
-  ~DefaultSearchManager();
-
-  // Register prefs needed for tracking the default search provider.
-  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
-
-  // Save default search provider pref values into the map provided.
-  static void AddPrefValueToMap(base::DictionaryValue* value,
-                                PrefValueMap* pref_value_map);
-
-  // Testing code can call this with |disabled| set to true to cause
-  // GetDefaultSearchEngine() to return NULL instead of
-  // |fallback_default_search_| in cases where the DSE source is FROM_FALLBACK.
-  static void SetFallbackSearchEnginesDisabledForTesting(bool disabled);
-
-  // Gets a pointer to the current Default Search Engine. If NULL, indicates
-  // that Default Search is explicitly disabled. |source|, if not NULL, will be
-  // filled in with the source of the result.
-  TemplateURLData* GetDefaultSearchEngine(Source* source) const;
-
-  // Gets the source of the current Default Search Engine value.
-  Source GetDefaultSearchEngineSource() const;
-
-  // Write default search provider data to |pref_service_|.
-  void SetUserSelectedDefaultSearchEngine(const TemplateURLData& data);
-
-  // Override the default search provider with an extension.
-  void SetExtensionControlledDefaultSearchEngine(const TemplateURLData& data);
-
-  // Clear the extension-provided default search engine. Does not explicitly
-  // disable Default Search. The new current default search engine will be
-  // defined by policy, extensions, or pre-populated data.
-  void ClearExtensionControlledDefaultSearchEngine();
-
-  // Clear the user's default search provider choice from |pref_service_|. Does
-  // not explicitly disable Default Search. The new default search
-  // engine will be defined by policy, extensions, or pre-populated data.
-  void ClearUserSelectedDefaultSearchEngine();
-
- private:
-  // Handles changes to kDefaultSearchProviderData pref. This includes sync and
-  // policy changes. Calls LoadDefaultSearchEngineFromPrefs() and
-  // NotifyObserver() if the effective DSE might have changed.
-  void OnDefaultSearchPrefChanged();
-
-  // Handles changes to kSearchProviderOverrides pref. Calls
-  // LoadPrepopulatedDefaultSearch() and NotifyObserver() if the effective DSE
-  // might have changed.
-  void OnOverridesPrefChanged();
-
-  // Updates |prefs_default_search_| with values from its corresponding
-  // pre-populated search provider record, if any.
-  void MergePrefsDataWithPrepopulated();
-
-  // Reads default search provider data from |pref_service_|, updating
-  // |prefs_default_search_| and |default_search_controlled_by_policy_|.
-  // Invokes MergePrefsDataWithPrepopulated().
-  void LoadDefaultSearchEngineFromPrefs();
-
-  // Reads pre-populated search providers, which will be built-in or overridden
-  // by kSearchProviderOverrides. Updates |fallback_default_search_|. Invoke
-  // MergePrefsDataWithPrepopulated().
-  void LoadPrepopulatedDefaultSearch();
-
-  // Invokes |change_observer_| if it is not NULL.
-  void NotifyObserver();
-
-  PrefService* pref_service_;
-  const ObserverCallback change_observer_;
-  PrefChangeRegistrar pref_change_registrar_;
-
-  // Default search engine provided by pre-populated data or by the
-  // |kSearchProviderOverrides| pref. This will be used when no other default
-  // search engine has been selected.
-  scoped_ptr<TemplateURLData> fallback_default_search_;
-
-  // Default search engine provided by prefs (either user prefs or policy
-  // prefs). This will be null if no value was set in the pref store.
-  scoped_ptr<TemplateURLData> extension_default_search_;
-
-  // Default search engine provided by extension (usings Settings Override API).
-  // This will be null if there are no extensions installed which provide
-  // default search engines.
-  scoped_ptr<TemplateURLData> prefs_default_search_;
-
-  // True if the default search is currently enforced by policy.
-  bool default_search_controlled_by_policy_;
-
-  DISALLOW_COPY_AND_ASSIGN(DefaultSearchManager);
-};
-
-#endif  // CHROME_BROWSER_SEARCH_ENGINES_DEFAULT_SEARCH_MANAGER_H_