Sanitize PrefStore interface.

chrome/browser/prefs/value_map_pref_store.cc

Index: chrome/browser/prefs/value_map_pref_store.cc
diff --git a/chrome/browser/prefs/value_map_pref_store.cc b/chrome/browser/prefs/value_map_pref_store.cc
new file mode 100644
index 0000000000000000000000000000000000000000..82574b2639f0161152e63083e6e4bb2162071807
--- /dev/null
+++ b/chrome/browser/prefs/value_map_pref_store.cc
@@ -0,0 +1,37 @@
+// 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.
+
+#include "chrome/browser/prefs/value_map_pref_store.h"
+
+#include <algorithm>
+
+#include "base/stl_util-inl.h"
+#include "base/values.h"
+
+PrefStore::ReadResult ValueMapPrefStore::GetValue(const std::string& key,
+                                                  Value** value) const {
+  return prefs_.GetValue(key, value) ? READ_OK : READ_NO_VALUE;
+}
+
+void ValueMapPrefStore::AddObserver(PrefStore::Observer* observer) {
+  observers_.AddObserver(observer);
+}
+
+void ValueMapPrefStore::RemoveObserver(PrefStore::Observer* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+void ValueMapPrefStore::SetValue(const std::string& key, Value* value) {
+  if (prefs_.SetValue(key, value))
+    FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
+}
+
+void ValueMapPrefStore::RemoveValue(const std::string& key) {
+  if (prefs_.RemoveValue(key))
+    FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
+}
+
+void ValueMapPrefStore::NotifyInitializationCompleted() {
+  FOR_EACH_OBSERVER(Observer, observers_, OnInitializationCompleted());
+}