Add extra data to BrowserContext so that content layer and other embedders can stash data with it t…

base/supports_user_data.cc

+// Copyright (c) 2012 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 "base/supports_user_data.h"
+
+namespace base {
+
+SupportsUserData::SupportsUserData() {
+}
+
+SupportsUserData::~SupportsUserData() {
+}
+
+SupportsUserData::Data* SupportsUserData::GetUserData(const void* key) const {
+  DataMap::const_iterator found = user_data_.find(key);
+  if (found != user_data_.end())
+    return found->second.get();
+  return NULL;
+}
+
+void SupportsUserData::SetUserData(const void* key, Data* data) {
+  user_data_[key] = linked_ptr<Data>(data);
+}
+
+}  // namespace base