Revert of mojo VR interface simplified

Revert of mojo VR interface simplified (patchset #21 id:400001 of https://codereview.chromium.org/2420743003/ )

Reason for revert:
This broke https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5867/steps/compile/logs/stdio

Original issue's description:
> mojo VR interface simplified
>
> Since mojo interface prefer API without index transfer, current
> implementation should be modified.
>
> According to dcheng@ and bajones@ comments, WebVR implementation should
> modified to let display/frame communicate directly so that index
> parameters are no longer need.
>
> This patch is based on the strategy above and will have three stages:
> 1(done). Modify event handler part;
> 2(current). Modify VRService Interface;
> 3. Modify unittest part;
>
> BUG=652080
> R=leon.han@intel.com,dcheng@chromium.org,bshe@chromium.org,bajones@chromium.org
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
>
> Committed: https://crrev.com/91d0e2e835b7e000e432f3df690ed37a36cde1ec
> Cr-Commit-Position: refs/heads/master@{#431210}

TBR=bajones@chromium.org,bshe@chromium.org,dcheng@chromium.org,leon.han@intel.com,reillyg@chromium.org,rockot@chromium.org,haraken@chromium.org,clamy@chromium.org,mkwst@chromium.org,shaobo.yan@intel.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=652080
Committed: https://crrev.com/f9f3bc1775dff0c89c8feb0737e36e71a9ae0658
Cr-Commit-Position: refs/heads/master@{#431233}

[vabr (Chromium), 2016-11-10 11:21:47]

The CQ bit was checked by vabr@chromium.org

[vabr (Chromium), 2016-11-10 11:21:48]

Created Revert of mojo VR interface simplified

[commit-bot: I haz the power, 2016-11-10 11:21:54]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-10 11:23:09]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-10 11:25:21]

Description was changed from

==========
Revert of mojo VR interface simplified (patchset #21 id:400001 of
https://codereview.chromium.org/2420743003/ )

Reason for revert:
This broke
https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5867/steps/co...

Original issue's description:
> mojo VR interface simplified
> 
> Since mojo interface prefer API without index transfer, current
> implementation should be modified.
> 
> According to dcheng@ and bajones@ comments, WebVR implementation should
> modified to let display/frame communicate directly so that index
> parameters are no longer need.
> 
> This patch is based on the strategy above and will have three stages:
> 1(done). Modify event handler part;
> 2(current). Modify VRService Interface;
> 3. Modify unittest part;
> 
> BUG=652080
>
R=leon.han@intel.com,dcheng@chromium.org,bshe@chromium.org,bajones@chromium.org
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
> 
> Committed: https://crrev.com/91d0e2e835b7e000e432f3df690ed37a36cde1ec
> Cr-Commit-Position: refs/heads/master@{#431210}

TBR=bajones@chromium.org,bshe@chromium.org,dcheng@chromium.org,leon.han@intel...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=652080
==========

to

==========
Revert of mojo VR interface simplified (patchset #21 id:400001 of
https://codereview.chromium.org/2420743003/ )

Reason for revert:
This broke
https://build.chromium.org/p/chromium/builders/Win%20x64/builds/5867/steps/co...

Original issue's description:
> mojo VR interface simplified
>
> Since mojo interface prefer API without index transfer, current
> implementation should be modified.
>
> According to dcheng@ and bajones@ comments, WebVR implementation should
> modified to let display/frame communicate directly so that index
> parameters are no longer need.
>
> This patch is based on the strategy above and will have three stages:
> 1(done). Modify event handler part;
> 2(current). Modify VRService Interface;
> 3. Modify unittest part;
>
> BUG=652080
>
R=leon.han@intel.com,dcheng@chromium.org,bshe@chromium.org,bajones@chromium.org
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
>
> Committed: https://crrev.com/91d0e2e835b7e000e432f3df690ed37a36cde1ec
> Cr-Commit-Position: refs/heads/master@{#431210}

TBR=bajones@chromium.org,bshe@chromium.org,dcheng@chromium.org,leon.han@intel...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=652080

Committed: https://crrev.com/f9f3bc1775dff0c89c8feb0737e36e71a9ae0658
Cr-Commit-Position: refs/heads/master@{#431233}
==========

[commit-bot: I haz the power, 2016-11-10 11:25:22]

Patchset 1 (id:??) landed as
https://crrev.com/f9f3bc1775dff0c89c8feb0737e36e71a9ae0658
Cr-Commit-Position: refs/heads/master@{#431233}