Media: Introduce addSourceBuffer which takes an unparsed codecs string

Media: Introduce addSourceBuffer which takes an unparsed codecs string

Introduce an overload of WebMediaSourceImpl::addSourceBuffer that takes
codecs as an unparsed string and parses it using
media::ParseCodecString. This will allow us to remove the other
overload, which expects a parsed vector of codecs. This will
consolidate parsing of the codecs string in media and will allow
us to remove duplicated parsing code in blink::ContentType::codecs

BUG=none

Committed: https://crrev.com/b21b828451bfe2f3befc8f1735846b0cad3f1310
Cr-Commit-Position: refs/heads/master@{#343058}

[servolk, 2015-08-07 01:58:42]

servolk@chromium.org changed reviewers:
+ dalecurtis@chromium.org

[servolk, 2015-08-07 21:46:08]

On 2015/08/07 01:58:48, servolk wrote:

The next step is going to be https://codereview.chromium.org/1283573002/
And after both CLs have landed I'll remove the old
WebSourceBufferImpl::addSourceBuffer overload, that takes
a vector of strings.

[DaleCurtis, 2015-08-07 22:21:23]

dalecurtis@chromium.org changed reviewers:
+ wolenetz@chromium.org
- dalecurtis@chromium.org

[DaleCurtis, 2015-08-07 22:21:23]

Sorry, I don't know this code well enough to review.

[wolenetz, 2015-08-12 17:29:39]

lgtm

[servolk, 2015-08-12 17:31:43]

The CQ bit was checked by servolk@chromium.org

[commit-bot: I haz the power, 2015-08-12 17:32:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1281663003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1281663003/20001

[commit-bot: I haz the power, 2015-08-12 18:22:28]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-08-12 18:23:29]

Patchset 2 (id:??) landed as
https://crrev.com/b21b828451bfe2f3befc8f1735846b0cad3f1310
Cr-Commit-Position: refs/heads/master@{#343058}