DevTools: Merge highlightPosition and revealLine methods on SourceFrame.

DevTools: Merge highlightPosition and revealLine methods on SourceFrame.

This patch keeps highlightPosition method on SourceFrame for backwards compatibility with corresponding virtual methods on View.

R=lushnikov@chromium.org, lushnikov, pfeldman

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=169551

[vsevik, 2014-03-19 08:53:13]

PTAL

[lushnikov, 2014-03-19 10:10:46]

lgtm

[vsevik, 2014-03-19 11:40:56]

The CQ bit was checked by vsevik@chromium.org

[commit-bot: I haz the power, 2014-03-19 11:40:59]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/vsevik@chromium.org/204323003/1

[commit-bot: I haz the power, 2014-03-19 12:10:37]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-19 12:10:37]

Try jobs failed on following builders:
  tryserver.blink on linux_blink_rel

[vsevik, 2014-03-19 14:49:27]

Committed patchset #2 manually as r169551 (presubmit successful).