Prettify blocked plugin HTML UI

Prettify blocked plugin HTML UI:
* Make run plugin link look more like a link (blue and underlined on hover). 
* Change wording to "Run plug-in this time" ("load plug-in" might get confused with installing a plug-in)
* Add a small explanatory message

BUG=none
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=55060

[Bernhard Bauer, 2010-08-02 14:25:57]

Would you like to review this or should I send it to someone else?

[Pam (message me for reviews), 2010-08-04 18:22:43]

Sorry about the delay; this fell off my email list.

LGTM, with one query below.

- Pam

http://codereview.chromium.org/3074021/diff/1/4
File chrome/renderer/resources/blocked_plugin.html (right):

http://codereview.chromium.org/3074021/diff/1/4#newcode15
chrome/renderer/resources/blocked_plugin.html:15: color: blue;
Do we have any mechanism for allowing users to override these sorts of things?
Blue on pale yellow ought to be OK for most people, even those who are
color-blind if I understand correctly, but there are always some who want
high-contrast or other special color schemes.

[Bernhard Bauer, 2010-08-05 10:00:39]

On Wed, Aug 4, 2010 at 20:22,  <pam@chromium.org> wrote:
> Sorry about the delay; this fell off my email list.
>
> LGTM, with one query below.
>
> - Pam
>
>
> http://codereview.chromium.org/3074021/diff/1/4
> File chrome/renderer/resources/blocked_plugin.html (right):
>
> http://codereview.chromium.org/3074021/diff/1/4#newcode15
> chrome/renderer/resources/blocked_plugin.html:15: color: blue;
> Do we have any mechanism for allowing users to override these sorts of
> things? Blue on pale yellow ought to be OK for most people, even those
> who are color-blind if I understand correctly, but there are always some
> who want high-contrast or other special color schemes.

Hum. At the moment we don't, and I wouldn't exactly know where to put
such a mechanism :-/

>
> http://codereview.chromium.org/3074021/show
>

[Pam (message me for reviews), 2010-08-05 10:08:02]

> > Do we have any mechanism for allowing users to override these sorts of
> > things? Blue on pale yellow ought to be OK for most people, even those
> > who are color-blind if I understand correctly, but there are always some
> > who want high-contrast or other special color schemes.
> 
> Hum. At the moment we don't, and I wouldn't exactly know where to put
> such a mechanism :-/

Filed http://crbug.com/51260. Still LGTM.

- Pam