Add a missing dependency from gcm_driver.

Add a missing dependency from gcm_driver.

BUG=None
TBR=dimich@chromium.org
TEST=manually

Committed: https://crrev.com/fc3f784458badb17ac6ddc060c4d48ff808ed1b3
Cr-Commit-Position: refs/heads/master@{#301569}

[Jun Mukai, 2014-10-28 04:42:40]

The CQ bit was checked by mukai@chromium.org

[commit-bot: I haz the power, 2014-10-28 04:44:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/683753002/1

[commit-bot: I haz the power, 2014-10-28 04:52:29]

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

[commit-bot: I haz the power, 2014-10-28 04:52:30]

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

[Jun Mukai, 2014-10-28 04:56:37]

The CQ bit was checked by mukai@chromium.org

[commit-bot: I haz the power, 2014-10-28 04:58:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/683753002/20001

[commit-bot: I haz the power, 2014-10-28 05:47:44]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2014-10-28 05:48:28]

Patchset 2 (id:??) landed as
https://crrev.com/fc3f784458badb17ac6ddc060c4d48ff808ed1b3
Cr-Commit-Position: refs/heads/master@{#301569}