PPAPI: Make empty webcam names turn in to a space.

PPAPI: Make empty webcam names turn in to a space.

When permission for a webcam has not yet been granted, we still allow
enumerating the devices, but omit the name. Some Flash content can't
deal with an empty string for the webcam name. This turns the empty
string in to a space to work around the problem.

BUG=408404
Committed: https://crrev.com/271b5ac015bc9eeaee9a6e14442dbb9e8ef3889d
Cr-Commit-Position: refs/heads/master@{#295476}

[dmichael (off chromium), 2014-09-17 17:02:07]

dmichael@chromium.org changed reviewers:
+ ihf@chromium.org

[dmichael (off chromium), 2014-09-17 17:02:07]

What do you think of this approach? Stupid, but simple.

I verified it fixes the problem on online-voice-recorder.com.

[ilja, 2014-09-18 06:02:56]

On 2014/09/17 17:02:07, dmichael wrote:
> What do you think of this approach? Stupid, but simple.
> 
> I verified it fixes the problem on http://online-voice-recorder.com.

As discussed in the bug, this seems to work and I see no better solution.
Probably the least bad.

lgtm

[dmichael (off chromium), 2014-09-18 15:04:01]

The CQ bit was checked by dmichael@chromium.org

[commit-bot: I haz the power, 2014-09-18 15:05:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/577983002/20001

[commit-bot: I haz the power, 2014-09-18 15:05:10]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-09-18 15:05:11]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[dmichael (off chromium), 2014-09-18 15:39:05]

dmichael@chromium.org changed reviewers:
+ teravest@chromium.org
- ihf@chromium.org

[dmichael (off chromium), 2014-09-18 15:39:05]

teravest@, I need a committer review. Look OK to you?

[teravest, 2014-09-18 15:39:27]

lgtm

[dmichael (off chromium), 2014-09-18 15:39:55]

The CQ bit was checked by dmichael@chromium.org

[commit-bot: I haz the power, 2014-09-18 15:40:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/577983002/20001

[commit-bot: I haz the power, 2014-09-18 16:14:27]

Committed patchset #2 (id:20001) as 9b91b4437fbd5c490b23f31cd67523c6396fe1a8

[commit-bot: I haz the power, 2014-09-18 16:14:54]

Patchset 2 (id:??) landed as
https://crrev.com/271b5ac015bc9eeaee9a6e14442dbb9e8ef3889d
Cr-Commit-Position: refs/heads/master@{#295476}