Revert of Port NotificationViewMD unit tests from NotificationViewTest.

Revert of Port NotificationViewMD unit tests from NotificationViewTest. (patchset #5 id:80001 of https://codereview.chromium.org/2966343002/ )

Reason for revert:
message_center_unittests failing on chromium.memory/Linux Chromium OS ASan LSan Tests (1)

BUG=739356
Original issue's description:
> Port NotificationViewMD unit tests from NotificationViewTest.
> 
> Ported unit tests from NotificationViewTest and created
> NotificationViewMDTest. Also fixed bugs and check failures found during
> porting the tests.
> * Fix RemoveChildView null checking. (CHECK fails on debug builds.)
> * Fix action button hover state inheritance.
> 
> Following tests are not ported from NotificationViewTest, mostly
> because the feature is unimplemented or the test is not applicable.
> * CreateOrUpdateTestSettingsButton
> * TestLineLimits
> * TestImageSizing
> * SettingsButtonTest
> * ViewOrderingTest
> * FormatContextMessageTest
> 
> BUG=733948
> TEST=out/Debug/message_center_unittests
> 
> Review-Url: https://codereview.chromium.org/2966343002
> Cr-Commit-Position: refs/heads/master@{#484851}
> Committed: https://chromium.googlesource.com/chromium/src/+/9a4a1121fae26a1727728888a41975bc15e3e62f

TBR=fukino@chromium.org,yoshiki@chromium.org,tetsui@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=733948
Review-Url: https://codereview.chromium.org/2965353002
Cr-Commit-Position: refs/heads/master@{#484899}
Committed: https://chromium.googlesource.com/chromium/src/+/a0e04c835cae01af85b8532022cec6ee5346f69f

[mastiz, 2017-07-07 12:45:17]

The CQ bit was checked by mastiz@chromium.org

[mastiz, 2017-07-07 12:45:18]

Created Revert of Port NotificationViewMD unit tests from NotificationViewTest.

[commit-bot: I haz the power, 2017-07-07 12:45:26]

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, 2017-07-07 12:45:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1499431517230120, "parent_rev":
"dbb008f0e650d625766f8d29776a52aadbad9ce1", "commit_rev":
"a0e04c835cae01af85b8532022cec6ee5346f69f"}

[commit-bot: I haz the power, 2017-07-07 12:45:57]

Description was changed from

==========
Revert of Port NotificationViewMD unit tests from NotificationViewTest.
(patchset #5 id:80001 of https://codereview.chromium.org/2966343002/ )

Reason for revert:
message_center_unittests failing on chromium.memory/Linux Chromium OS ASan LSan
Tests (1)

BUG=739356

Original issue's description:
> Port NotificationViewMD unit tests from NotificationViewTest.
> 
> Ported unit tests from NotificationViewTest and created
> NotificationViewMDTest. Also fixed bugs and check failures found during
> porting the tests.
> * Fix RemoveChildView null checking. (CHECK fails on debug builds.)
> * Fix action button hover state inheritance.
> 
> Following tests are not ported from NotificationViewTest, mostly
> because the feature is unimplemented or the test is not applicable.
> * CreateOrUpdateTestSettingsButton
> * TestLineLimits
> * TestImageSizing
> * SettingsButtonTest
> * ViewOrderingTest
> * FormatContextMessageTest
> 
> BUG=733948
> TEST=out/Debug/message_center_unittests
> 
> Review-Url: https://codereview.chromium.org/2966343002
> Cr-Commit-Position: refs/heads/master@{#484851}
> Committed:
https://chromium.googlesource.com/chromium/src/+/9a4a1121fae26a1727728888a419...

TBR=fukino@chromium.org,yoshiki@chromium.org,tetsui@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=733948
==========

to

==========
Revert of Port NotificationViewMD unit tests from NotificationViewTest.
(patchset #5 id:80001 of https://codereview.chromium.org/2966343002/ )

Reason for revert:
message_center_unittests failing on chromium.memory/Linux Chromium OS ASan LSan
Tests (1)

BUG=739356

Original issue's description:
> Port NotificationViewMD unit tests from NotificationViewTest.
> 
> Ported unit tests from NotificationViewTest and created
> NotificationViewMDTest. Also fixed bugs and check failures found during
> porting the tests.
> * Fix RemoveChildView null checking. (CHECK fails on debug builds.)
> * Fix action button hover state inheritance.
> 
> Following tests are not ported from NotificationViewTest, mostly
> because the feature is unimplemented or the test is not applicable.
> * CreateOrUpdateTestSettingsButton
> * TestLineLimits
> * TestImageSizing
> * SettingsButtonTest
> * ViewOrderingTest
> * FormatContextMessageTest
> 
> BUG=733948
> TEST=out/Debug/message_center_unittests
> 
> Review-Url: https://codereview.chromium.org/2966343002
> Cr-Commit-Position: refs/heads/master@{#484851}
> Committed:
https://chromium.googlesource.com/chromium/src/+/9a4a1121fae26a1727728888a419...

TBR=fukino@chromium.org,yoshiki@chromium.org,tetsui@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=733948

Review-Url: https://codereview.chromium.org/2965353002
Cr-Commit-Position: refs/heads/master@{#484899}
Committed:
https://chromium.googlesource.com/chromium/src/+/a0e04c835cae01af85b8532022ce...
==========

[commit-bot: I haz the power, 2017-07-07 12:45:58]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/a0e04c835cae01af85b8532022ce...