Prepare WebMediaPlayerAndroid for bytesLoaded() -> didLoadingProgress() transition.

Prepare WebMediaPlayerAndroid for bytesLoaded() -> didLoadingProgress() transition.

TBR=scherkus

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=139945

[Ami GONE FROM CHROMIUM, 2012-05-31 21:16:09]

qinmin: PTAL.  This is needed to re-land http://webk.it/86113.

I also removed all the OVERRIDE attributes because they incorrectly bind
together the webkit & chromium repositories
(https://groups.google.com/a/chromium.org/d/topic/chromium-dev/FF0hBbv3_fM/dis...)

[qinmin, 2012-05-31 22:20:23]

lgtm

Thanks, Ami. I just noticed the android build is broken and I have put a change
in http://codereview.chromium.org/10413015/ to fix it. The change is in commit
queue so it should be submitted soon. 
However, I haven't got time to checkout how didLoadingProgress() should work, so
i am just returning true after the first bufferUpdate event.

[commit-bot: I haz the power, 2012-05-31 22:48:36]

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 lowly 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.

[Ami GONE FROM CHROMIUM, 2012-05-31 22:49:24]

Ok.  I'm CQ'ing this change so if your CL fails the CQ, this one will go
in, otherwise this one will get rejected on merge conflict (after yours
lands) and I'll update this CL to fix your (landed) CL to return correct
information.

[commit-bot: I haz the power, 2012-05-31 22:55:57]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/fischman@chromium.org/10469003/2003

[commit-bot: I haz the power, 2012-06-01 01:13:26]

Change committed as 139945