Fix NULL crash in PrintViewManager::PrintPreviewDone.

Fix NULL crash in PrintViewManager::PrintPreviewDone.

BUG=538612
Committed: https://crrev.com/8720794e92dc9c82466a608d2cec1dc8fc8adabb
Cr-Commit-Position: refs/heads/master@{#369341}

[hcarmona, 2016-01-14 01:27:21]

hcarmona@chromium.org changed reviewers:
+ thestig@chromium.org

[hcarmona, 2016-01-14 01:27:21]

PTAL, this is the fix we talked about.

[Lei Zhang, 2016-01-14 01:28:26]

lgtm

[hcarmona, 2016-01-14 01:28:41]

The CQ bit was checked by hcarmona@chromium.org

[commit-bot: I haz the power, 2016-01-14 01:31:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1581083004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1581083004/1

[commit-bot: I haz the power, 2016-01-14 03:31:46]

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

[commit-bot: I haz the power, 2016-01-14 03:31:47]

Try jobs failed on following builders:
  android_arm64_dbg_recipe on tryserver.chromium.android (JOB_TIMED_OUT, no
build URL)
  android_chromium_gn_compile_dbg on tryserver.chromium.android (JOB_TIMED_OUT,
no build URL)
  android_chromium_gn_compile_rel on tryserver.chromium.android (JOB_TIMED_OUT,
no build URL)
  android_clang_dbg_recipe on tryserver.chromium.android (JOB_TIMED_OUT, no
build URL)
  android_compile_dbg on tryserver.chromium.android (JOB_TIMED_OUT, no build
URL)
  cast_shell_android on tryserver.chromium.android (JOB_TIMED_OUT, no build URL)

[Lei Zhang, 2016-01-14 03:43:53]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2016-01-14 03:46:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1581083004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1581083004/1

[commit-bot: I haz the power, 2016-01-14 04:21:02]

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

[commit-bot: I haz the power, 2016-01-14 04:21:03]

Try jobs failed on following builders:
  linux_chromium_chromeos_ozone_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Lei Zhang, 2016-01-14 05:06:10]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2016-01-14 05:06:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1581083004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1581083004/1

[commit-bot: I haz the power, 2016-01-14 05:43:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-14 05:45:21]

Description was changed from

==========
Fix NULL crash in PrintViewManager::PrintPreviewDone.

BUG=538612
==========

to

==========
Fix NULL crash in PrintViewManager::PrintPreviewDone.

BUG=538612

Committed: https://crrev.com/8720794e92dc9c82466a608d2cec1dc8fc8adabb
Cr-Commit-Position: refs/heads/master@{#369341}
==========

[commit-bot: I haz the power, 2016-01-14 05:45:21]

Patchset 1 (id:??) landed as
https://crrev.com/8720794e92dc9c82466a608d2cec1dc8fc8adabb
Cr-Commit-Position: refs/heads/master@{#369341}