Sanitize PrefStore interface.

chrome/test/testing_pref_service.h

 // Copyright (c) 2010 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_TEST_TESTING_PREF_SERVICE_H_
 #define CHROME_TEST_TESTING_PREF_SERVICE_H_
 #pragma once
 
 #include "chrome/browser/prefs/pref_service.h"
 
-class CommandLine;
-namespace policy {
-class ConfigurationPolicyProvider;
-}
-class PrefStore;
+class TestingPrefStore;
 
 // A PrefService subclass for testing. It operates totally in memory and
 // provides additional API for manipulating preferences at the different levels
 // (managed, extension, user) conveniently.
 class TestingPrefService : public PrefService {
  public:
   // Create an empty instance.
   TestingPrefService();
 
-  // Create an instance that has a managed PrefStore and a command- line
-  // PrefStore. |managed_platform_provider| contains the provider with which to
-  // initialize the managed platform PrefStore. If it is NULL, then a
-  // TestingPrefStore will be created. |device_management_provider| contains the
-  // provider with which to initialize the device management
-  // PrefStore. |command_line| contains the provider with which to initialize
-  // the command line PrefStore. If it is NULL then a TestingPrefStore will be
-  // created as the command line PrefStore.
-  TestingPrefService(
-      policy::ConfigurationPolicyProvider* managed_platform_provider,
-      policy::ConfigurationPolicyProvider* device_management_provider,
-      CommandLine* command_line);
-
   // Read the value of a preference from the managed layer. Returns NULL if the
   // preference is not defined at the managed layer.
   const Value* GetManagedPref(const char* path);
 
   // Set a preference on the managed layer and fire observers if the preference
   // changed. Assumes ownership of |value|.
   void SetManagedPref(const char* path, Value* value);
 
   // Clear the preference on the managed layer and fire observers if the
   // preference has been defined previously.
   void RemoveManagedPref(const char* path);
 
-  // Set a preference on the managed layer.  Assumes ownership of |value|.
-  // We don't fire observers for each change because in the real code, the
-  // notification is sent after all the prefs have been loaded.  See
-  // ConfigurationPolicyPrefStore::ReadPrefs().
-  void SetManagedPrefWithoutNotification(const char* path, Value* value);
-
-  // Clear the preference on the managed layer.
-  // We don't fire observers for each change because in the real code, the
-  // notification is sent after all the prefs have been loaded.  See
-  // ConfigurationPolicyPrefStore::ReadPrefs().
-  void RemoveManagedPrefWithoutNotification(const char* path);
-
   // Similar to the above, but for user preferences.
   const Value* GetUserPref(const char* path);
   void SetUserPref(const char* path, Value* value);
   void RemoveUserPref(const char* path);
 
  private:
-  // Creates a ConfigurationPolicyPrefStore based on the provided
-  // |provider| or a TestingPrefStore if |provider| is NULL.
-  PrefStore* CreatePolicyPrefStoreFromProvider(
-      policy::ConfigurationPolicyProvider* provider);
-
-  // Creates a CommandLinePrefStore based on the supplied
-  // |command_line| or a TestingPrefStore if |command_line| is NULL.
-  PrefStore* CreateCommandLinePrefStore(CommandLine* command_line);
-
   // Reads the value of the preference indicated by |path| from |pref_store|.
   // Returns NULL if the preference was not found.
-  const Value* GetPref(PrefStore* pref_store, const char* path);
+  const Value* GetPref(TestingPrefStore* pref_store, const char* path);

[battre (please use the other), 2010/12/08 12:24:15]

Any reason why this has to be a TestingPrefStore instead of a PrefStore?

[battre (please use the other), 2010/12/08 12:24:15]

const? maybe not because it is a Testing class

[Mattias Nissler (ping if slow), 2010/12/09 10:20:20]

Because we know it'll be a TestingPrefStore and for symmetry with SetPref and
RemovePref. Furthermore, this is private, so we can always adjust the interface
making local changes.

const: done.

 
   // Sets the value for |path| in |pref_store|.
-  void SetPref(PrefStore* pref_store, const char* path, Value* value);
+  void SetPref(TestingPrefStore* pref_store, const char* path, Value* value);

[battre (please use the other), 2010/12/08 12:24:15]

Any reason why this has to be a TestingPrefStore instead of a persistent
PrefStore?

[Mattias Nissler (ping if slow), 2010/12/09 10:20:20]

See the other comment.

 
   // Removes the preference identified by |path| from |pref_store|.
-  void RemovePref(PrefStore* pref_store, const char* path);
+  void RemovePref(TestingPrefStore* pref_store, const char* path);
 
   // Pointers to the pref stores our value store uses.
-  PrefStore* managed_platform_prefs_;  // weak
-  PrefStore* device_management_prefs_;  // weak
-  PrefStore* user_prefs_;  // weak
-  PrefStore* default_prefs_;  // weak
+  TestingPrefStore* managed_platform_prefs_;  // weak
+  TestingPrefStore* device_management_prefs_;  // weak
+  TestingPrefStore* user_prefs_;  // weak
 
   DISALLOW_COPY_AND_ASSIGN(TestingPrefService);
 };
 
 #endif  // CHROME_TEST_TESTING_PREF_SERVICE_H_