Revert incognito and theme inactive color changes.

Revert incognito and theme inactive color changes.

Partial revert of crrev.com/2541873004. We're not happy with the colors
and we don't want to ship them in 57. But we're keeping the default
non-incognito/inactive color change to #F5F5F5 because it dramatically
increases contrast with the active frame.

TBR=estade@chromium.org
BUG=645682, 677172
Review-Url: https://codereview.chromium.org/2663363002
Cr-Commit-Position: refs/heads/master@{#448752}
(cherry picked from commit af5bd1316ab3fd3054d08471c0a25b4b7c66cf9c)

Review-Url: https://codereview.chromium.org/2712583002 .
Cr-Commit-Position: refs/branch-heads/2987@{#630}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/d542e5990f46859423784528739ea9b5e406b3c8

[Bret, 2017-02-21 23:54:57]

Description was changed from

==========
Revert incognito and theme inactive color changes.

Partial revert of crrev.com/2541873004. We're not happy with the colors
and we don't want to ship them in 57. But we're keeping the default
non-incognito/inactive color change to #F5F5F5 because it dramatically
increases contrast with the active frame.

TBR=estade@chromium.org
BUG=645682,677172

Review-Url: https://codereview.chromium.org/2663363002
Cr-Commit-Position: refs/heads/master@{#448752}
(cherry picked from commit af5bd1316ab3fd3054d08471c0a25b4b7c66cf9c)
==========

to

==========
Revert incognito and theme inactive color changes.

Partial revert of crrev.com/2541873004. We're not happy with the colors
and we don't want to ship them in 57. But we're keeping the default
non-incognito/inactive color change to #F5F5F5 because it dramatically
increases contrast with the active frame.

TBR=estade@chromium.org
BUG=645682,677172

Review-Url: https://codereview.chromium.org/2663363002
Cr-Commit-Position: refs/heads/master@{#448752}
(cherry picked from commit af5bd1316ab3fd3054d08471c0a25b4b7c66cf9c)

Review-Url: https://codereview.chromium.org/2712583002 .
Cr-Commit-Position: refs/branch-heads/2987@{#630}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/d542e5990f46859423784528739e...
==========

[Bret, 2017-02-21 23:54:58]

Committed patchset #2 (id:20001) manually as
d542e5990f46859423784528739ea9b5e406b3c8 (presubmit successful).