content: shouldn't prevent fallback content on an image getting displayed

content: shouldn't prevent fallback content on an image getting displayed

If an image has fallback content then we need to display it, don't let a content:
directive prevent that. For what it's worth this fix makes our rendering of the
test match FF.

BUG=485414
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=195445

[rhogan, 2015-05-12 18:35:13]

robhogan@gmail.com changed reviewers:
+ pdr@chromium.org

[inferno, 2015-05-14 22:37:07]

inferno@chromium.org changed reviewers:
+ tkent@chromium.org

[inferno, 2015-05-16 21:31:29]

inferno@chromium.org changed reviewers:
+ esprehn@chromium.org, junov@chromium.org
- pdr@chromium.org, tkent@chromium.org

[pdr., 2015-05-17 23:04:09]

pdr@chromium.org changed reviewers:
+ pdr@chromium.org

[pdr., 2015-05-17 23:04:09]

The CQ bit was checked by pdr@chromium.org

[pdr., 2015-05-17 23:04:10]

lgtm

[commit-bot: I haz the power, 2015-05-17 23:04:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1134903002/20001

[pdr., 2015-05-17 23:04:41]

On 2015/05/17 at 23:04:10, pdr (Slow May 5th - May 18th) wrote:
> lgtm

Sorry for the delay. We're all in Sydney for Blinkon.

[commit-bot: I haz the power, 2015-05-18 00:13:55]

Committed patchset #2 (id:20001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=195445