Revert of Move base/prefs to components/prefs

base/prefs/testing_pref_store.h

Index: base/prefs/testing_pref_store.h
diff --git a/base/prefs/testing_pref_store.h b/base/prefs/testing_pref_store.h
index 297aa116c1fcee42bb4759f1caa080be58b175a5..713e69a7d4e07203102b5915f642a7a749eeeae7 100644
--- a/base/prefs/testing_pref_store.h
+++ b/base/prefs/testing_pref_store.h
@@ -2,6 +2,113 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO(brettw) remove this forwarding header when prefs is completely moved to
-// components.
-#include "components/prefs/testing_pref_store.h"
+#ifndef BASE_PREFS_TESTING_PREF_STORE_H_
+#define BASE_PREFS_TESTING_PREF_STORE_H_
+
+#include <stdint.h>
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "base/observer_list.h"
+#include "base/prefs/persistent_pref_store.h"
+#include "base/prefs/pref_value_map.h"
+
+// |TestingPrefStore| is a preference store implementation that allows tests to
+// explicitly manipulate the contents of the store, triggering notifications
+// where appropriate.
+class TestingPrefStore : public PersistentPrefStore {
+ public:
+  TestingPrefStore();
+
+  // Overriden from PrefStore.
+  bool GetValue(const std::string& key,
+                const base::Value** result) const override;
+  void AddObserver(PrefStore::Observer* observer) override;
+  void RemoveObserver(PrefStore::Observer* observer) override;
+  bool HasObservers() const override;
+  bool IsInitializationComplete() const override;
+
+  // PersistentPrefStore overrides:
+  bool GetMutableValue(const std::string& key, base::Value** result) override;
+  void ReportValueChanged(const std::string& key, uint32_t flags) override;
+  void SetValue(const std::string& key,
+                scoped_ptr<base::Value> value,
+                uint32_t flags) override;
+  void SetValueSilently(const std::string& key,
+                        scoped_ptr<base::Value> value,
+                        uint32_t flags) override;
+  void RemoveValue(const std::string& key, uint32_t flags) override;
+  bool ReadOnly() const override;
+  PrefReadError GetReadError() const override;
+  PersistentPrefStore::PrefReadError ReadPrefs() override;
+  void ReadPrefsAsync(ReadErrorDelegate* error_delegate) override;
+  void CommitPendingWrite() override;
+  void SchedulePendingLossyWrites() override;
+
+  // Marks the store as having completed initialization.
+  void SetInitializationCompleted();
+
+  // Used for tests to trigger notifications explicitly.
+  void NotifyPrefValueChanged(const std::string& key);
+  void NotifyInitializationCompleted();
+
+  // Some convenience getters/setters.
+  void SetString(const std::string& key, const std::string& value);
+  void SetInteger(const std::string& key, int value);
+  void SetBoolean(const std::string& key, bool value);
+
+  bool GetString(const std::string& key, std::string* value) const;
+  bool GetInteger(const std::string& key, int* value) const;
+  bool GetBoolean(const std::string& key, bool* value) const;
+
+  // Determines whether ReadPrefsAsync completes immediately. Defaults to false
+  // (non-blocking). To block, invoke this with true (blocking) before the call
+  // to ReadPrefsAsync. To unblock, invoke again with false (non-blocking) after
+  // the call to ReadPrefsAsync.
+  void SetBlockAsyncRead(bool block_async_read);
+
+  // Getter and Setter methods for setting and getting the state of the
+  // |TestingPrefStore|.
+  virtual void set_read_only(bool read_only);
+  void set_read_success(bool read_success);
+  void set_read_error(PersistentPrefStore::PrefReadError read_error);
+  bool committed() { return committed_; }
+
+ protected:
+  ~TestingPrefStore() override;
+
+ private:
+  // Stores the preference values.
+  PrefValueMap prefs_;
+
+  // Flag that indicates if the PrefStore is read-only
+  bool read_only_;
+
+  // The result to pass to PrefStore::Observer::OnInitializationCompleted
+  bool read_success_;
+
+  // The result to return from ReadPrefs or ReadPrefsAsync.
+  PersistentPrefStore::PrefReadError read_error_;
+
+  // Whether a call to ReadPrefsAsync should block.
+  bool block_async_read_;
+
+  // Whether there is a pending call to ReadPrefsAsync.
+  bool pending_async_read_;
+
+  // Whether initialization has been completed.
+  bool init_complete_;
+
+  // Whether the store contents have been committed to disk since the last
+  // mutation.
+  bool committed_;
+
+  scoped_ptr<ReadErrorDelegate> error_delegate_;
+  base::ObserverList<PrefStore::Observer, true> observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestingPrefStore);
+};
+
+#endif  // BASE_PREFS_TESTING_PREF_STORE_H_