Lighten incognito frame when inactive, instead of darkening it.

Lighten incognito frame when inactive, instead of darkening it.

BUG=599952
TEST=Run Chrome with --top-chrome-md=material on Linux, using the Classic theme.  Open an incognito window and then deactivate it.  The frame should lighten and the outlines around tabs should stay dark.

Review URL: https://codereview.chromium.org/1862923002

Cr-Commit-Position: refs/heads/master@{#385593}
(cherry picked from commit f549e90f4bf57b261f0f9db9971dc0193b433358)

Committed: https://chromium.googlesource.com/chromium/src/+/6217e3d464614465e46080937f99e9fbf1dc08df

[Peter Kasting, 2016-04-07 23:02:48]

Description was changed from

==========
Lighten incognito frame when inactive, instead of darkening it.

BUG=599952
TEST=Run Chrome with --top-chrome-md=material on Linux, using the Classic theme.
 Open an incognito window and then deactivate it.  The frame should lighten and
the outlines around tabs should stay dark.

Review URL: https://codereview.chromium.org/1862923002

Cr-Commit-Position: refs/heads/master@{#385593}
(cherry picked from commit f549e90f4bf57b261f0f9db9971dc0193b433358)
==========

to

==========
Lighten incognito frame when inactive, instead of darkening it.

BUG=599952
TEST=Run Chrome with --top-chrome-md=material on Linux, using the Classic theme.
 Open an incognito window and then deactivate it.  The frame should lighten and
the outlines around tabs should stay dark.

Review URL: https://codereview.chromium.org/1862923002

Cr-Commit-Position: refs/heads/master@{#385593}
(cherry picked from commit f549e90f4bf57b261f0f9db9971dc0193b433358)

Committed:
https://chromium.googlesource.com/chromium/src/+/6217e3d464614465e46080937f99...
==========

[Peter Kasting, 2016-04-07 23:02:50]

Committed patchset #1 (id:1) manually as
6217e3d464614465e46080937f99e9fbf1dc08df.