Move webCacheManager to //components.

components/web_cache/common/pref_names.h

+// 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 COMPONENTS_WEB_CACHE_COMMON_PREF_NAMES_H_
+#define COMPONENTS_WEB_CACHE_COMMON_PREF_NAMES_H_
+
+namespace web_cache {
+namespace prefs {
+
+// Alphabetical list of preference names specific to the web_cache component.
+// Keep alphabetized, and document each in the .cc file.
+
+extern const char kMemoryCacheSize[];

[James Cook, 2014/09/05 16:53:18]

Can this go away?

[Xi Han, 2014/09/05 19:39:25]

Yeas, both prefs_names.h and prefs_names.cc are gone.

+
+}  // namespace prefs
+}  // namespace web_cache
+
+#endif  // COMPONENTS_WEB_CACHE_COMMON_PREF_NAMES_H_