Add widevine_cdm_version.h to gyp for android.

Add widevine_cdm_version.h to gyp for android.

- EME API works on Chrome build.
- CanPlayType() is suppressed (returns "") by default.
- User can choose to override the CanPlayType() suppression with a flag
  "--override-encrypted-media-canplaytype".
- For Android "video/mp4" is supported, while "video/webm" isn't.

BUG=163552
TEST=Tested all scenarios listed above.
R=ddorwin@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=221548

[xhwang, 2013-09-05 17:25:23]

This is the updated version of https://codereview.chromium.org/18501017/.

PTAL.

[xhwang, 2013-09-05 17:32:38]

https://codereview.chromium.org/23975003/diff/4001/content/renderer/media/cry...
File content/renderer/media/crypto/key_systems_info.cc (right):

https://codereview.chromium.org/23975003/diff/4001/content/renderer/media/cry...
content/renderer/media/crypto/key_systems_info.cc:80: #if !defined(OS_ANDROID)
We could use something like WIDEVINE_CDM_WEBM_SUPPORT_AVAILABLE here, but I feel
that's overkill.

[ddorwin, 2013-09-05 17:48:43]

lgtm

I don't think 224793 really applies to this CL. This CL doesn't make progress on
addressing it.

https://codereview.chromium.org/23975003/diff/4001/content/renderer/media/cry...
File content/renderer/media/crypto/key_systems_info.cc (right):

https://codereview.chromium.org/23975003/diff/4001/content/renderer/media/cry...
content/renderer/media/crypto/key_systems_info.cc:80: #if !defined(OS_ANDROID)
On 2013/09/05 17:32:38, xhwang wrote:
> We could use something like WIDEVINE_CDM_WEBM_SUPPORT_AVAILABLE here, but I
feel
> that's overkill.

This is all changing, so don't worry about it. (If you land first, I'll need to
add an Android function.

https://codereview.chromium.org/23975003/diff/4001/third_party/widevine/cdm/a...
File third_party/widevine/cdm/android/widevine_cdm_version.h (right):

https://codereview.chromium.org/23975003/diff/4001/third_party/widevine/cdm/a...
third_party/widevine/cdm/android/widevine_cdm_version.h:19: #define
WIDEVINE_CDM_CENC_SUPPORT_AVAILABLE
This doesn't mean the same thing (anything?) in the new implementation, but we
can remove it later.

[commit-bot: I haz the power, 2013-09-05 18:02:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/xhwang@chromium.org/23975003/4001

[xhwang, 2013-09-06 00:03:54]

Committed patchset #2 manually as r221548 (presubmit successful).