Adds ChromecastConfig to manage cast_shell's PrefService.

chromecast/common/cast_paths.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 CHROMECAST_COMMON_CAST_PATHS_H_
 #define CHROMECAST_COMMON_CAST_PATHS_H_
 
 // This file declares path keys for the chromecast module.  These can be used
 // with the PathService to access various special directories and files.
 
 namespace chromecast {
 
 enum {
   PATH_START = 8000,
 
   DIR_CAST_HOME,    // Return a modified $HOME which works for both
                     // development use and the actual device.
 
+  FILE_CAST_CONFIG, // Config/preferences file path, defaults to
+                    // "$HOME/.eureka.conf".

[lcwu1, 2014/08/08 00:22:38]

s/.eureka.conf/cast_shell.conf, or simply don't mention what the default value
is (so that if in the future the default path is modified in .cc file, we don't
have to remember to come here to change the comment).

[gunsch, 2014/08/08 00:26:36]

Done.

   PATH_END
 };
 
 // Call once to register the provider for the path keys defined above.
 void RegisterPathProvider();
 
 }  // namespace chromecast
 
 #endif  // CHROMECAST_COMMON_CAST_PATHS_H_