Merge WebKit at r65615 : Ignore http/tests/appcache/origin-quota.html

This patch modifies the old-style hard-coded ignore list. The new-style
text file (in external/webkit/LayoutTests/platform/android) has been
modified separately, as part of the normal WebKit merge process.

Test added in http://trac.webkit.org/changeset/64613
Needs clearAllApplicationCaches() callback. See http://b/issue?id=2944196

Change-Id: I31655c363c93eada40d01123e9c14c0d03bdba7b