Mojo: Make the mojom bindings generator not exponential in the import depth.

Committed: https://crrev.com/d8988a18cf52f4cfc146a5a57251bfa6cd4ef8f6
Cr-Commit-Position: refs/heads/master@{#293352}

[jamesr, 2014-09-03 19:37:04]

lgtm

[viettrungluu, 2014-09-03 19:40:11]

The CQ bit was checked by viettrungluu@chromium.org

[commit-bot: I haz the power, 2014-09-03 19:41:54]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/viettrungluu@chromium.org/535333002/1

[commit-bot: I haz the power, 2014-09-03 20:32:53]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_chromium_rel_swarming on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  win_chromium_rel_swarming on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[commit-bot: I haz the power, 2014-09-04 02:26:55]

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

[commit-bot: I haz the power, 2014-09-04 02:26:56]

Try jobs failed on following builders:
  win_chromium_rel_swarming on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[viettrungluu, 2014-09-04 22:10:47]

Committed patchset #1 (id:1) to pending queue manually as 14c4929 (presubmit
successful).

[commit-bot: I haz the power, 2014-09-10 03:33:08]

Patchset 1 (id:??) landed as
https://crrev.com/d8988a18cf52f4cfc146a5a57251bfa6cd4ef8f6
Cr-Commit-Position: refs/heads/master@{#293352}