linux: scan more plugin directories, fix bugs

We now scan more directories, sort file entries by mtime, use
realpath() before loading plugins (fixes a Java bug), and de-duplicate
multiple instances of the same plugin.
This matches the Mozilla plugin loading code more closely.

We also ignore xpcom-related errors while loading plugins, as that
breaks layout tests.

I encountered this while attempting to fix QuickTime (need to load
the Totem plugins) but the fix overlaps with the Java one.  I believe
neither quite work yet, though.

BUG=16787,19712
TEST=about:plugins should show more plugins

Review URL: http://codereview.chromium.org/173550

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@24691 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 0922baeab1134628d5898a21dbbd8973647caae0
1 file changed
tree: 42ac926eff2c90ece70dc8bdb992410df1c86e46
  1. base/
  2. build/
  3. ipc/
  4. testing/