File Manager: fix an unsafe const reference (intermittent crash).

Regression started by (http://crrev.com/148492).

The FilePath.BaseName().value() is a local temp object and it is not safe to
assign it to a const string reference. Use the display_name instead.

BUG=139736
TEST=lumpy

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=149234

Landed as a separate CL: Add ChromeOS-specific OWNERS for extensions.

Review URL: https://chromiumcodereview.appspot.com/10828086

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149237 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/extensions/OWNERS

@@ -12,3 +12,11 @@ miket@chromium.org
 mpcomplete@chromium.org
 skerner@chromium.org
 yoz@chromium.org
+
+# Additional ChromeOS-specific reviewers
+achuith@chromium.org
+hashimoto@chromium.org
+hshi@chromium.org
+satorux@chromium.org
+tbarzic@chromium.org
+zelidrag@chromium.org