file_manager: fileBrowserPrivate.formatDevice() to use "volumeId"

BUG=316077
TEST=formatting works as before

Review URL: https://codereview.chromium.org/77633002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236444 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236444
Clarify the interface of JSONStringValueSerializer::Deserialize which can only return JSONParseError codes as an error_code.

Also make sure JsonParseError codes do not go beyond JsonFileError codes which are used in conjunction for JSONFileValueSerializer.

Review URL: https://codereview.chromium.org/71653002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236445 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236445