Change VLOG levels in media/cast.

Convention:
VLOG(1) for information that's unlikely to flood logs.
VLOG(2) for per-frame information.
VLOG(3) for per-packet information (likely to flood logs).

Certain logs are 'promoted'. For example, per-frame information can
still use VLOG(1) if it does not occur that often or should be
considered important enough to use VLOG(1).

Review URL: https://codereview.chromium.org/104403010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240570 0039d316-1c4b-4281-b951-d872f2087c98
Remove GetDefaultProfile() from c/b/cros/file_manager.

This is a part of the effort to get rid of GetDefaultProfile()
that doesn't make nice sense in multi-profiled Chrome OS.

This CL adds Profile* parameter to functions in platform_util.h,
which is the source of all the call site of GetDefaultProfile
in file_manager code.

BUG=322682

Review URL: https://codereview.chromium.org/104503008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240571 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 240570
SVN changes up to revision 240571