Remove yoshiki@chromium.org from task manager OWNERS

I no longer work on task manager.

BUG=none
TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/196693002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@257007 0039d316-1c4b-4281-b951-d872f2087c98
Files.app: Add tests to copy a file from/to a fake USB volume.

The tests add a test volume that mimics a USB disk, and copies a file from/to
the fake USB volume.

BUG=345045,345046
TEST=run the test

Review URL: https://codereview.chromium.org/182383013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@257008 0039d316-1c4b-4281-b951-d872f2087c98
Updating trunk VERSION from 1891.0 to 1892.0

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@257009 0039d316-1c4b-4281-b951-d872f2087c98
Remove redundant code

BUG=None

Review URL: https://codereview.chromium.org/196723011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@257010 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 257007
SVN changes up to revision 257010