Revert of Remove default begin frame sources from the renderer

Revert of Remove default begin frame sources from the renderer (patchset #11 id:200001 of https://codereview.chromium.org/2083423006/ )

Reason for revert:
Speculative revert as there are some bots failing with a common and related stack.

Original issue's description:
> Remove default begin frame sources from the renderer
>
> This changes both cc proxies to no longer create default begin frame
> sources.  In cc, it must either be the case that an external begin frame
> source is provided (with use_external_begin_frame_source set) or the
> output surface provides a begin frame source (with
> use_output_surface_begin_frame_source).
>
> This changes the world from three states of BFS creation (default,
> output surface provided, and external) to only two (output surface
> provided and external).  In the future, external will also be removed.
>
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
>
> Committed: https://crrev.com/da025c649b0c2339771f2b06c482dcf8e388e889
> Cr-Commit-Position: refs/heads/master@{#415757}

TBR=danakj@chromium.org,sievers@chromium.org,enne@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/5738e49a21bee482e17e029ff3f4561449131a5e
Cr-Commit-Position: refs/heads/master@{#415776}

[fgorski, 2016-08-31 22:15:56]

The CQ bit was checked by fgorski@chromium.org

[fgorski, 2016-08-31 22:15:57]

Created Revert of Remove default begin frame sources from the renderer

[commit-bot: I haz the power, 2016-08-31 22:16:32]

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, 2016-08-31 22:17:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-31 22:20:02]

Description was changed from

==========
Revert of Remove default begin frame sources from the renderer (patchset #11
id:200001 of https://codereview.chromium.org/2083423006/ )

Reason for revert:
Speculative revert as there are some bots failing with a common and related
stack.

Original issue's description:
> Remove default begin frame sources from the renderer
> 
> This changes both cc proxies to no longer create default begin frame
> sources.  In cc, it must either be the case that an external begin frame
> source is provided (with use_external_begin_frame_source set) or the
> output surface provides a begin frame source (with
> use_output_surface_begin_frame_source).
> 
> This changes the world from three states of BFS creation (default,
> output surface provided, and external) to only two (output surface
> provided and external).  In the future, external will also be removed.
> 
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
> 
> Committed: https://crrev.com/da025c649b0c2339771f2b06c482dcf8e388e889
> Cr-Commit-Position: refs/heads/master@{#415757}

TBR=danakj@chromium.org,sievers@chromium.org,enne@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Remove default begin frame sources from the renderer (patchset #11
id:200001 of https://codereview.chromium.org/2083423006/ )

Reason for revert:
Speculative revert as there are some bots failing with a common and related
stack.

Original issue's description:
> Remove default begin frame sources from the renderer
>
> This changes both cc proxies to no longer create default begin frame
> sources.  In cc, it must either be the case that an external begin frame
> source is provided (with use_external_begin_frame_source set) or the
> output surface provides a begin frame source (with
> use_output_surface_begin_frame_source).
>
> This changes the world from three states of BFS creation (default,
> output surface provided, and external) to only two (output surface
> provided and external).  In the future, external will also be removed.
>
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
>
> Committed: https://crrev.com/da025c649b0c2339771f2b06c482dcf8e388e889
> Cr-Commit-Position: refs/heads/master@{#415757}

TBR=danakj@chromium.org,sievers@chromium.org,enne@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/5738e49a21bee482e17e029ff3f4561449131a5e
Cr-Commit-Position: refs/heads/master@{#415776}
==========

[commit-bot: I haz the power, 2016-08-31 22:20:03]

Patchset 1 (id:??) landed as
https://crrev.com/5738e49a21bee482e17e029ff3f4561449131a5e
Cr-Commit-Position: refs/heads/master@{#415776}