file_manager: Generate volume IDs in VolumeManager

Along the way, add FindVolumeInfoById() which will be used in
upcomig patches.

BUG=316077
TEST=none
R=kinaba@chromium.org

Review URL: https://codereview.chromium.org/68463002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234375 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234375
Disable the XP presentation path (GPU direct) for Chrome Frame.

This causes painting problems on certain ChromeFrame configurations. Should be fine for now given that
ChromeFrame is going away soon.

BUG=316934
R=jbauman@chromium.org
TBR=kbr

Review URL: https://codereview.chromium.org/69173003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234376 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234376