Fix opt-in IME menu crash.

Fix opt-in IME menu crash.

The crash is caused by the unsafely accessing of |title_row_| in TrayDetailsView, which is null for opt-in IME menu.
Fix the crash by adding the check of |title_row_|.

TBR=tdanderson@chromium.org
NOPRESUBMIT=true
NOTRY=true
BUG=650287
TEST=Verified on local build.

Review-Url: https://codereview.chromium.org/2390753006
Cr-Commit-Position: refs/heads/master@{#424049}
(cherry picked from commit d13360c1060219cd5a2d8085fab433a8f49d414a)

[Azure Wei, 2016-10-21 00:41:54]

Description was changed from

==========
Fix opt-in IME menu crash.

The crash is caused by the unsafely accessing of |title_row_| in
TrayDetailsView, which is null for opt-in IME menu.
Fix the crash by adding the check of |title_row_|.

BUG=650287
TEST=Verified on local build.

Review-Url: https://codereview.chromium.org/2390753006
Cr-Commit-Position: refs/heads/master@{#424049}
(cherry picked from commit d13360c1060219cd5a2d8085fab433a8f49d414a)
==========

to

==========
Fix opt-in IME menu crash.

The crash is caused by the unsafely accessing of |title_row_| in
TrayDetailsView, which is null for opt-in IME menu.
Fix the crash by adding the check of |title_row_|.

TBR=tdanderson@chromium.org
NOPRESUBMIT=true
NOTRY=true
BUG=650287
TEST=Verified on local build.

Review-Url: https://codereview.chromium.org/2390753006
Cr-Commit-Position: refs/heads/master@{#424049}
(cherry picked from commit d13360c1060219cd5a2d8085fab433a8f49d414a)
==========

[Azure Wei, 2016-10-21 00:41:59]

The CQ bit was checked by azurewei@chromium.org

[commit-bot: I haz the power, 2016-10-21 00:42:52]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-21 00:45:36]

Description was changed from

==========
Fix opt-in IME menu crash.

The crash is caused by the unsafely accessing of |title_row_| in
TrayDetailsView, which is null for opt-in IME menu.
Fix the crash by adding the check of |title_row_|.

TBR=tdanderson@chromium.org
NOPRESUBMIT=true
NOTRY=true
BUG=650287
TEST=Verified on local build.

Review-Url: https://codereview.chromium.org/2390753006
Cr-Commit-Position: refs/heads/master@{#424049}
(cherry picked from commit d13360c1060219cd5a2d8085fab433a8f49d414a)
==========

to

==========
Fix opt-in IME menu crash.

The crash is caused by the unsafely accessing of |title_row_| in
TrayDetailsView, which is null for opt-in IME menu.
Fix the crash by adding the check of |title_row_|.

TBR=tdanderson@chromium.org
NOPRESUBMIT=true
NOTRY=true
BUG=650287
TEST=Verified on local build.

Review-Url: https://codereview.chromium.org/2390753006
Cr-Commit-Position: refs/heads/master@{#424049}
(cherry picked from commit d13360c1060219cd5a2d8085fab433a8f49d414a)
==========

[commit-bot: I haz the power, 2016-10-21 00:45:37]

Committed patchset #1 (id:1)