Reverting my revert: mnissler fixed the webkit issue, supposedly.

Reverting my revert: mnissler fixed the webkit issue, supposedly.

Revert 161082 - Caused lots of failures on the build bots to appear in the middle of the night (PST).

See: http://build.chromium.org/p/chromium.chromiumos/builders/ChromiumOS%20%28daisy%29/builds/3618/steps/cbuildbot/logs/stdio
  "Failed Patch: webkit.gestureconfig.patch !"

Revert 161075 - Roll WebKit DEPS: 130831 => 130848

TBR=jchaffraix@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11098041

TBR=abarth@chromium.org
Review URL: https://codereview.chromium.org/11090045

TBR=finnur@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=161084