Renames window_manager.mojom to window_manager2.mojom

Renames window_manager.mojom to window_manager2.mojom

We'll come up with better names later on.

BUG=none
TEST=none
R=ben@chromium.org

Committed: https://crrev.com/060ec9669e74a704618fede00df445c4bbf8395e
Cr-Commit-Position: refs/heads/master@{#299050}

[Ben Goodger (Google), 2014-10-09 18:09:29]

lgtm

[sky, 2014-10-10 00:04:32]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2014-10-10 00:07:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/644793002/1

[commit-bot: I haz the power, 2014-10-10 00:19:31]

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

[commit-bot: I haz the power, 2014-10-10 00:19:38]

Try jobs failed on following builders:
  android_chromium_gn_compile_rel on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_chromiu...)
  linux_chromium_gn_dbg on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_gn_rel on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[sky, 2014-10-10 02:11:11]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2014-10-10 02:12:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/644793002/350001

[commit-bot: I haz the power, 2014-10-10 02:57:19]

Committed patchset #3 (id:350001)

[commit-bot: I haz the power, 2014-10-10 02:58:08]

Patchset 3 (id:??) landed as
https://crrev.com/060ec9669e74a704618fede00df445c4bbf8395e
Cr-Commit-Position: refs/heads/master@{#299050}