[Offline pages] Reduce the icon set for offline bolt, update colors

[Offline pages] Reduce the icon set for offline bolt, update colors

This patch:
* removes the assets for light offline bolt
* applies tinting to draw the bolt using the right color
* updates the colors based on UX recommendation

BUG=591105
R=tedchoc@chromium.org

Review URL: https://codereview.chromium.org/1753573005

Cr-Commit-Position: refs/heads/master@{#379595}
(cherry picked from commit a85ab8e4d88a1e32a0db232cfd946533dd49ef16)

Committed: https://chromium.googlesource.com/chromium/src/+/e4f3285c1ab237d7ac624f80665f4e5fe910b12c

[fgorski, 2016-03-07 19:04:59]

Description was changed from

==========
[Offline pages] Reduce the icon set for offline bolt, update colors

This patch:
* removes the assets for light offline bolt
* applies tinting to draw the bolt using the right color
* updates the colors based on UX recommendation

BUG=591105
R=tedchoc@chromium.org

Review URL: https://codereview.chromium.org/1753573005

Cr-Commit-Position: refs/heads/master@{#379595}
(cherry picked from commit a85ab8e4d88a1e32a0db232cfd946533dd49ef16)
==========

to

==========
[Offline pages] Reduce the icon set for offline bolt, update colors

This patch:
* removes the assets for light offline bolt
* applies tinting to draw the bolt using the right color
* updates the colors based on UX recommendation

BUG=591105
R=tedchoc@chromium.org

Review URL: https://codereview.chromium.org/1753573005

Cr-Commit-Position: refs/heads/master@{#379595}
(cherry picked from commit a85ab8e4d88a1e32a0db232cfd946533dd49ef16)

Committed:
https://chromium.googlesource.com/chromium/src/+/e4f3285c1ab237d7ac624f80665f...
==========

[fgorski, 2016-03-07 19:05:00]

Committed patchset #1 (id:1) manually as
e4f3285c1ab237d7ac624f80665f4e5fe910b12c.