Move GraphicsLayerUpdater::rebuildTree into its own file

Move GraphicsLayerUpdater::rebuildTree into its own file

GraphicsLayerUpdater::rebuildTree and GraphicsLayerUpdater::update no longer
have anything to do with each other. This CL move rebuildTree into a separate
file, called GraphicsLayerTreeBuilder.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=175731

[esprehn, 2014-06-06 21:46:04]

rslgtm, seems it doesn't apply though.

[abarth-chromium, 2014-06-06 22:36:26]

On 2014/06/06 21:46:04, esprehn wrote:
> rslgtm, seems it doesn't apply though.

Yeah, it's part of a stack of CLs.

[abarth-chromium, 2014-06-06 22:43:46]

The CQ bit was checked by abarth@chromium.org

[commit-bot: I haz the power, 2014-06-06 22:44:33]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/abarth@chromium.org/319183006/20001

[commit-bot: I haz the power, 2014-06-06 23:41:31]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_blink_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/1...)
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/1...)
  mac_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/mac_blink_rel/builds/10690)
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/11089)

[commit-bot: I haz the power, 2014-06-06 23:49:29]

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

[commit-bot: I haz the power, 2014-06-06 23:49:30]

Try jobs failed on following builders:
  mac_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/mac_blink_rel/builds/10701)

[abarth-chromium, 2014-06-07 00:12:16]

The CQ bit was checked by abarth@chromium.org

[commit-bot: I haz the power, 2014-06-07 00:13:42]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/abarth@chromium.org/319183006/20001

[commit-bot: I haz the power, 2014-06-07 01:17:40]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/11101)

[commit-bot: I haz the power, 2014-06-07 03:47:56]

Change committed as 175731