Merge 184652 "Disallow non-flexbox child renderers for RenderMedia"

Merge 184652 "Disallow non-flexbox child renderers for RenderMedia"

> Disallow non-flexbox child renderers for RenderMedia
> 
> Inline children of replaced content is not handled and triggered the
> ASSERT(curr->isRenderInline()) UNKNOWN in RenderInline::splitInlines().
> 
> The render tree at the point of failure was:
> 
> RenderView 0xd0c23404010                #document 0x2be215c04b48
>   RenderBlock 0xd0c2341c010             HTML 0x2be215c101a8
>     RenderBody 0xd0c2341c110            BODY 0x2be215c102b8
>       RenderBlock (anonymous) 0xd0c2341c310
>         RenderVideo 0xd0c23420010       VIDEO 0x2be215c48010
> *         RenderInline (relative positioned) 0xd0c23424010 DIV 0x2be215c68010
>       RenderBlock (anonymous) 0xd0c2341c210
>       RenderBlock (anonymous) 0xd0c2341c410
> 
> Making ::-webkit-media-controls* internal would have fixed this:
> https://codereview.chromium.org/662243003/
> https://groups.google.com/a/chromium.org/d/msg/blink-dev/YCIaYPa_DhI/RyDlcHmD1_wJ
> 
> Unfortunately, that is not without risk. This fix allows
> ::-webkit-media-controls { display: none; } to keep working until the
> usage can be measured.
> 
> BUG=415407, 426759
> 
> Review URL: https://codereview.chromium.org/689613002

TBR=philipj@opera.com

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=185110

[philipj_slow, 2014-11-11 08:36:58]

Committed patchset #1 (id:1) manually as r185110.