[Merge to M57] Remove non-MD test coverage from chrome/browser/ui/

[Merge to M57] Remove non-MD test coverage from chrome/browser/ui/

Merge to M57 on behalf of mohsen@

Now that Material Design mode for Ash is on by default, we can remove
non-MD test coverage.

TBR=sky@chromium.org
BUG=685837
TEST=SystemTrayDelegateChromeOSTest.*,
     BrowserNonClientFrameViewAshTest.* in browser_tests,
     ImmersiveModeControllerAshTest.* in unit_tests

Review-Url: https://codereview.chromium.org/2683313002
Cr-Commit-Position: refs/heads/master@{#449522}
(cherry picked from commit 97f5c688fee9e12927c7deed091350fbe27f531f)

Review-Url: https://codereview.chromium.org/2702643002 .
Cr-Commit-Position: refs/branch-heads/2987@{#566}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/378cb52e62a84eac09828e59028a20dd37594869

[Qiang(Joe) Xu, 2017-02-17 00:21:13]

Description was changed from

==========
[Merge to M57] Remove non-MD test coverage from chrome/browser/ui/

Merge to M57 on behalf of mohsen@

Now that Material Design mode for Ash is on by default, we can remove
non-MD test coverage.

TBR=sky@chromium.org
BUG=685837
TEST=SystemTrayDelegateChromeOSTest.*,
     BrowserNonClientFrameViewAshTest.* in browser_tests,
     ImmersiveModeControllerAshTest.* in unit_tests

Review-Url: https://codereview.chromium.org/2683313002
Cr-Commit-Position: refs/heads/master@{#449522}
(cherry picked from commit 97f5c688fee9e12927c7deed091350fbe27f531f)
==========

to

==========
[Merge to M57] Remove non-MD test coverage from chrome/browser/ui/

Merge to M57 on behalf of mohsen@

Now that Material Design mode for Ash is on by default, we can remove
non-MD test coverage.

TBR=sky@chromium.org
BUG=685837
TEST=SystemTrayDelegateChromeOSTest.*,
     BrowserNonClientFrameViewAshTest.* in browser_tests,
     ImmersiveModeControllerAshTest.* in unit_tests

Review-Url: https://codereview.chromium.org/2683313002
Cr-Commit-Position: refs/heads/master@{#449522}
(cherry picked from commit 97f5c688fee9e12927c7deed091350fbe27f531f)

Review-Url: https://codereview.chromium.org/2702643002 .
Cr-Commit-Position: refs/branch-heads/2987@{#566}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/378cb52e62a84eac09828e59028a...
==========

[Qiang(Joe) Xu, 2017-02-17 00:21:15]

Committed patchset #1 (id:1) manually as
378cb52e62a84eac09828e59028a20dd37594869 (presubmit successful).