Add Media Router drop-down-button.

Add Media Router drop-down-button.

This custom polymer element is used as a button to toggle the cast-mode-player (hide/show). It is styled after the current cast extension's drop down button.

BUG=464222
Committed: https://crrev.com/e908733bb3fa90e17924fe098bee3b9917db26ea
Cr-Commit-Position: refs/heads/master@{#324149}

[apacible, 2015-04-07 00:14:05]

Patchset #1 (id:1) has been deleted

[apacible, 2015-04-07 00:14:09]

Patchset #1 (id:20001) has been deleted

[apacible, 2015-04-07 00:21:56]

Patchset #1 (id:40001) has been deleted

[apacible, 2015-04-07 15:48:47]

Patchset #1 (id:60001) has been deleted

[apacible, 2015-04-07 16:06:12]

apacible@chromium.org changed reviewers:
+ jhawkins@chromium.org, jlklein@chromium.org, mfoltz@chromium.org,
michaelpg@chromium.org

[apacible, 2015-04-07 16:38:59]

apacible@chromium.org changed reviewers:
- jhawkins@chromium.org, jlklein@chromium.org, mfoltz@chromium.org,
michaelpg@chromium.org

[apacible, 2015-04-07 17:04:00]

Patchset #1 (id:80001) has been deleted

[apacible, 2015-04-07 17:11:45]

apacible@chromium.org changed reviewers:
+ jhawkins@chromium.org, jlklein@chromium.org, mfoltz@chromium.org,
michaelpg@chromium.org

[apacible, 2015-04-07 17:14:01]

PTAL, thanks!

Screenshots:
- default: https://screenshot.googleplex.com/rjhJOj67kv.png
- hover: https://screenshot.googleplex.com/HWvjbEzJr2.png
- showing: https://screenshot.googleplex.com/W4MitpLGsm.png

[James Hawkins, 2015-04-07 17:16:10]

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
File
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css
(right):

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css:6:
background: white;
Are you sure you want a white background and not, say, transparent?

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
File
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.html
(right):

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.html:6:
on-click="{{onButtonClick}}"></div>
nit: </div> on new line.

[apacible, 2015-04-07 17:28:31]

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
File
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css
(right):

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css:6:
background: white;
On 2015/04/07 17:16:09, James Hawkins wrote:
> Are you sure you want a white background and not, say, transparent?

Yep, we want this to be white.

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
File
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.html
(right):

https://codereview.chromium.org/1032533002/diff/100001/chrome/browser/resourc...
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.html:6:
on-click="{{onButtonClick}}"></div>
On 2015/04/07 17:16:09, James Hawkins wrote:
> nit: </div> on new line.

Done.

[Jeremy Klein, 2015-04-07 17:32:21]

lgtm

https://codereview.chromium.org/1032533002/diff/120001/chrome/browser/resourc...
File
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css
(right):

https://codereview.chromium.org/1032533002/diff/120001/chrome/browser/resourc...
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css:17:
float: right;
optional nit: I have an irrational hatred of float. Any way to use flexbox here?

[James Hawkins, 2015-04-07 18:17:01]

lgtm

[apacible, 2015-04-07 20:23:10]

https://codereview.chromium.org/1032533002/diff/120001/chrome/browser/resourc...
File
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css
(right):

https://codereview.chromium.org/1032533002/diff/120001/chrome/browser/resourc...
chrome/browser/resources/media_router/elements/drop_down_button/drop_down_button.css:17:
float: right;
On 2015/04/07 17:32:20, Jeremy Klein wrote:
> optional nit: I have an irrational hatred of float. Any way to use flexbox
here?

I'm removing this since it'll be more flexible to have whatever's using this
element determine how it's placed.

I'll keep in mind to use flexbox over float!

[mark a. foltz, 2015-04-07 21:56:07]

lgtm

[apacible, 2015-04-07 22:13:07]

The CQ bit was checked by apacible@chromium.org

[apacible, 2015-04-07 22:13:07]

The patchset sent to the CQ was uploaded after l-g-t-m from
jlklein@chromium.org, jhawkins@chromium.org
Link to the patchset: https://codereview.chromium.org/1032533002/#ps140001
(title: " ")

[commit-bot: I haz the power, 2015-04-07 22:13:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1032533002/140001

[commit-bot: I haz the power, 2015-04-07 23:14:33]

Committed patchset #3 (id:140001)

[commit-bot: I haz the power, 2015-04-07 23:15:15]

Patchset 3 (id:??) landed as
https://crrev.com/e908733bb3fa90e17924fe098bee3b9917db26ea
Cr-Commit-Position: refs/heads/master@{#324149}