HTML exit reader view button

HTML exit reader view button

This change removes the 'view original' link and replaces it with
a button that currently navigates to the original article but will
eventually slide the view out of focus.

The feedback form and close button now span the full width of a page
while content is limited to 800px wide.

BUG=428533
Committed: https://crrev.com/ae0286c350696ba16a8119af2af4aee2f06859e9
Cr-Commit-Position: refs/heads/master@{#333759}

[mdjones, 2015-06-03 16:36:32]

mdjones@chromium.org changed reviewers:
+ cjhopman@chromium.org

[cjhopman, 2015-06-04 20:40:50]

lgtm

[mdjones, 2015-06-04 23:01:26]

mdjones@chromium.org changed reviewers:
+ jochen@chromium.org, noyau@chromium.org

[mdjones, 2015-06-04 23:01:27]

+noyau for ios/
+jochen for PRESUBMIT.py

[noyau (Ping after 24h), 2015-06-05 07:21:30]

ios/ lgtm.

[jochen (gone - plz use gerrit), 2015-06-05 12:19:19]

please don't use prefixed CSS properties. This will screw up our use counters.

I understand that you need them for iOS, but we can't use them for
android/desktop

[mdjones, 2015-06-09 00:10:40]

On 2015/06/05 12:19:19, jochen wrote:
> please don't use prefixed CSS properties. This will screw up our use counters.
> 
> I understand that you need them for iOS, but we can't use them for
> android/desktop

I have moved the CSS with the webkit prefixes to another file that only gets
loaded if the OS is iOS.

[jochen (gone - plz use gerrit), 2015-06-09 08:14:42]

lgtm

[mdjones, 2015-06-10 15:50:45]

The CQ bit was checked by mdjones@chromium.org

[mdjones, 2015-06-10 15:50:45]

The patchset sent to the CQ was uploaded after l-g-t-m from
cjhopman@chromium.org, noyau@chromium.org
Link to the patchset: https://codereview.chromium.org/1160113004/#ps100001
(title: "clean up")

[commit-bot: I haz the power, 2015-06-10 15:51:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1160113004/100001

[commit-bot: I haz the power, 2015-06-10 18:10:45]

Committed patchset #6 (id:100001)

[commit-bot: I haz the power, 2015-06-10 18:11:34]

Patchset 6 (id:??) landed as
https://crrev.com/ae0286c350696ba16a8119af2af4aee2f06859e9
Cr-Commit-Position: refs/heads/master@{#333759}