Mojo: More plumbing required to transfer handles over MessagePipes.

R=davemoore@google.com, davemoore

Review URL: https://codereview.chromium.org/68303007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234636 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234636
Don't include inline text boxes in Android accessibility tree.

BUG=316075

Review URL: https://codereview.chromium.org/63913002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234637 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234637