Revert TouchDevice.hasAnySource optimization.

Android InputDevice sources are not represented by single set bits,
and so or'ing them together is not correct.

BUG=672907

Review-Url: https://codereview.chromium.org/2594733002
Cr-Commit-Position: refs/heads/master@{#439834}
(cherry picked from commit d1c093ed77175994ae746c380d331961aa755955)

Review-Url: https://codereview.chromium.org/2604353002 .
Cr-Commit-Position: refs/branch-heads/2924@{#638}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
1 file changed