Revert of Update SSL/malware/net error interstitial design

Revert of Update SSL/malware/net error interstitial design (patchset #10 id:180001 of https://codereview.chromium.org/865943002/)

Reason for revert:
ErrorPageTests are failing on Linux ChromiumOS:

http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%281%29/builds/55305

http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%281%29/builds/55306

http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%281%29/builds/55307

Original issue's description:
> + On small screens the navigation buttons are anchored to the bottom of the screen.
> + Tweaks to the text colour
> + Change button styling of safe browsing page
>
> BUG=422882
>
> Committed: https://crrev.com/7ee5b21903f8a466e8f8e995e62354deceb987f0
> Cr-Commit-Position: refs/heads/master@{#313280}

TBR=arv@chromium.org,felt@chromium.org,edwardjung@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=422882
Committed: https://crrev.com/a535eb28d8d33d58767211ecb52486e21017dbfc
Cr-Commit-Position: refs/heads/master@{#313288}

[dconnelly, 2015-01-27 16:40:57]

Created Revert of Update SSL/malware/net error interstitial design

[commit-bot: I haz the power, 2015-01-27 16:41:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/866723005/1

[commit-bot: I haz the power, 2015-01-27 16:42:38]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-27 16:43:58]

Patchset 1 (id:??) landed as
https://crrev.com/a535eb28d8d33d58767211ecb52486e21017dbfc
Cr-Commit-Position: refs/heads/master@{#313288}