Add /bigobj to all builds on Windows.

Add /bigobj to all builds on Windows.

This is set in GYP for all compiler invocations. In GN it was only set in one place in content. This brings GN closer to GYP.

Committed: https://crrev.com/2d5b2103b272a6ad9ad183e710ff82835226c18b
Cr-Commit-Position: refs/heads/master@{#342230}

[brettw, 2015-08-06 21:44:58]

brettw@chromium.org changed reviewers:
+ jam@chromium.org

[brettw, 2015-08-06 21:45:03]

The CQ bit was checked by brettw@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-08-06 21:45:34]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1269253003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1269253003/1

[jam, 2015-08-06 22:43:31]

lgtm

[brettw, 2015-08-06 22:44:01]

The CQ bit was unchecked by brettw@chromium.org

[brettw, 2015-08-06 22:44:04]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2015-08-06 22:45:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1269253003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1269253003/1

[commit-bot: I haz the power, 2015-08-06 23:21:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-06 23:22:30]

Patchset 1 (id:??) landed as
https://crrev.com/2d5b2103b272a6ad9ad183e710ff82835226c18b
Cr-Commit-Position: refs/heads/master@{#342230}