Remove unused GraphicsContext::drawEllipse()

Remove unused GraphicsContext::drawEllipse()

Also update the GC unit test with explicit {fill|stroke}Ellipse calls to
preserve current test semantics.

R=senorblanco@chromium.org,schenney@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=172978

[pdr., 2014-04-29 15:57:16]

On 2014/04/29 15:53:45, Florin Malita wrote:

LGTM

[pdr., 2014-04-29 15:57:20]

The CQ bit was checked by pdr@chromium.org

[commit-bot: I haz the power, 2014-04-29 15:57:32]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/fmalita@chromium.org/258293002/1

[commit-bot: I haz the power, 2014-04-29 22:39:53]

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

[commit-bot: I haz the power, 2014-04-29 22:39:54]

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

[f(malita), 2014-04-30 12:25:27]

The CQ bit was checked by fmalita@chromium.org

[commit-bot: I haz the power, 2014-04-30 12:25:36]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/fmalita@chromium.org/258293002/1

[commit-bot: I haz the power, 2014-04-30 14:47:59]

Change committed as 172978