ash: Update the volume icon when audio is muted/unmuted.

ash: Update the volume icon when audio is muted/unmuted.

R=ben@chromium.org
BUG=118116
TEST=none

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=126671

[Ben Goodger (Google), 2012-03-14 16:06:42]

LGTM

On Tue, Mar 13, 2012 at 8:41 PM, <sadrul@chromium.org> wrote:

> Reviewers: Ben Goodger (Google),
>
> Description:
> ash: Update the volume icon when audio is muted/unmuted.
>
> R=ben@chromium.org
> BUG=118116
> TEST=none
>
>
> Please review this at
http://codereview.chromium.**org/9706007/<http://codereview.chromium.org/9706...
>
> SVN Base:
svn://svn.chromium.org/chrome/**trunk/src<http://svn.chromium.org/chrome/trunk/src>
>
> Affected files:
>  M ash/system/audio/tray_volume.**cc
>
>
> Index: ash/system/audio/tray_volume.**cc
> diff --git a/ash/system/audio/tray_**volume.cc b/ash/system/audio/tray_**
> volume.cc
> index 5a8e856e27b80aab79fd18f9455043**be7e847d3f..**
> 45d1d1d72f8ab5e01aaec12ac95d25**af4258779e 100644
> --- a/ash/system/audio/tray_**volume.cc
> +++ b/ash/system/audio/tray_**volume.cc
> @@ -115,6 +115,10 @@ class VolumeView : public views::View,
>
>   void SetVolumeLevel(float percent) {
>     slider_->SetValue(percent);
> +    // It is possible that the volume was (un)muted, but the actual
> volume level
> +    // did not change. In that case, setting the value of the slider won't
> +    // trigger a repaint. So explicitly trigger a repaint.
> +    icon_->SchedulePaint();
>   }
>
>  private:
>
>
>