Remove unnecassary parameter "sampleRate" for loadAudioResource().

Remove unnecassary parameter "sampleRate" for loadAudioResource().

Parameter "sampleRate" is not required for loadAudioResource().
There is FIXME in AudioBus.cpp in blink
FIXME: the sampleRate parameter is ignored. It should be removed from the API.

It will be consist of 3 steps. 
1. Removing "sampleRate" in chrome which is called by blink. (included deprecated method) 
https://codereview.chromium.org/195043002/ 

2. Removing "sampleRate" in blink. 
https://codereview.chromium.org/194753005/ 

3. Removing deprecated method from #1 
https://codereview.chromium.org/199573004/ 

BUG=351284
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=169188

[KhNo, 2014-03-11 13:29:00]

Please review the patch set.
This patch  is related with https://codereview.chromium.org/195043002/

[KhNo, 2014-03-11 13:29:28]

jamesr@chromium.org: Please review changes in

[jamesr, 2014-03-11 21:59:21]

This looks like a patch for Raymond.  I'll be happy to rubber-stamp once he's
happy.

[Raymond Toy, 2014-03-13 02:13:45]

On 2014/03/11 21:59:21, jamesr wrote:
> This looks like a patch for Raymond.  I'll be happy to rubber-stamp once he's
> happy.

lgtm

[KhNo, 2014-03-13 17:08:41]

On 2014/03/13 02:13:45, Raymond Toy wrote:
> On 2014/03/11 21:59:21, jamesr wrote:
> > This looks like a patch for Raymond.  I'll be happy to rubber-stamp once
he's
> > happy.
> 
> lgtm

James, Could you consider giving LGTM for it ?

[jamesr, 2014-03-13 19:11:14]

lgtm

[KhNo, 2014-03-14 00:14:16]

The CQ bit was checked by keonho07.kim@samsung.com

[commit-bot: I haz the power, 2014-03-14 00:14:18]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keonho07.kim@samsung.com/194753005/1

[KhNo, 2014-03-14 00:14:53]

On 2014/03/13 19:11:14, jamesr wrote:
> lgtm

Thank you. :)

[commit-bot: I haz the power, 2014-03-14 01:10:19]

Change committed as 169188