Store default search provider data in dictionary pref.

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
new file mode 100644
index 0000000000000000000000000000000000000000..6882bd600fd043ebefa9ac01bb3d2365b08322df
--- /dev/null
+++ b/chrome/browser/search_engines/default_search_manager.h
@@ -0,0 +1,37 @@
+// 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/basictypes.h"

[erikwright (departed), 2014/04/23 20:48:53]

replace with base/macros.h

[Cait (Slow), 2014/04/23 23:26:55]

Done.

+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+class PrefService;
+struct TemplateURLData;
+
+class DefaultSearchManager {

[erikwright (departed), 2014/04/23 20:48:53]

Some comments are required here.

[Cait (Slow), 2014/04/23 23:26:55]

Done.

+ public:
+  explicit DefaultSearchManager(PrefService* pref_service);
+  ~DefaultSearchManager();
+
+  // Register prefs needed for tracking the default search provider.
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
+  // Read default search provider data from |pref_service_|.
+  bool ReadFromPrefService(TemplateURLData* url);

[gab, 2014/04/23 20:00:18]

I think the fact that it reads/saves to PrefService is an implementation detail.
I would just call these methods.

GetDefaultSearchEngineData() and SaveUserSelectedDefaultSearchEngineData().

[erikwright (departed), 2014/04/23 20:48:53]

Agreed, but Save -> Set, and I don't think Data is required.

[Cait (Slow), 2014/04/23 23:26:55]

Done.

+
+  // Write default search provider data to |pref_service_|.
+  void SaveToPrefService(const TemplateURLData& data);
+
+ private:
+  PrefService* pref_service_;
+
+  DISALLOW_COPY_AND_ASSIGN(DefaultSearchManager);
+};
+
+#endif  // CHROME_BROWSER_SEARCH_ENGINES_DEFAULT_SEARCH_MANAGER_H_