cc: Remove all traces of synchronous GPU rasterization

cc: Remove all traces of synchronous GPU rasterization

Removed threaded gpu raster flag, and syncronous gpu raster tests and
all code required for syncronous gpu rasterization.

Removed the empty software rasterizer class, and base and moved
ownership of the gpu rasterizer into the GpuTileTaskWorkerPool, since
it is still a nice separation of functionality

BUG=457860
Committed: https://crrev.com/59d4494849b405682265ed5d3f5164573b9a939b
Cr-Commit-Position: refs/heads/master@{#323860}

[hendrikw, 2015-04-03 22:00:03]

hendrikw@chromium.org changed reviewers:
+ vmiura@chromium.org, vmpstr@chromium.org

[hendrikw, 2015-04-03 22:00:10]

PTAL, thanks!

https://codereview.chromium.org/1063493002/diff/20001/cc/resources/gpu_tile_t...
File cc/resources/gpu_tile_task_worker_pool.cc (right):

https://codereview.chromium.org/1063493002/diff/20001/cc/resources/gpu_tile_t...
cc/resources/gpu_tile_task_worker_pool.cc:212: new
RasterBufferImpl(rasterizer_.get(), resource));
This was my only concern with this cl, since the lifetime of the rasterizer is
now tied to the lifetime of the GpuTileTaskWorkerPool, I checked with reveman,
he said that GpuTileTaskWorkerPool will outlive the buffer impl.

[hendrikw, 2015-04-03 22:02:45]

hendrikw@chromium.org changed reviewers:
+ piman@chromium.org

[hendrikw, 2015-04-03 22:02:46]

added piman for flag changes (content\)

[piman, 2015-04-03 22:21:16]

lgtm

[vmiura, 2015-04-03 22:22:42]

lgtm % nit.  Thanks!

https://codereview.chromium.org/1063493002/diff/20001/cc/resources/tile_manag...
File cc/resources/tile_manager.h (left):

https://codereview.chromium.org/1063493002/diff/20001/cc/resources/tile_manag...
cc/resources/tile_manager.h:99: // rasterizer.h
nit: Should keep this comment and change rasterizer.h -> tile_task_runner.h

[hendrikw, 2015-04-03 22:27:16]

On 2015/04/03 22:22:42, vmiura wrote:
> lgtm % nit.  Thanks!
> 
>
https://codereview.chromium.org/1063493002/diff/20001/cc/resources/tile_manag...
> File cc/resources/tile_manager.h (left):
> 
>
https://codereview.chromium.org/1063493002/diff/20001/cc/resources/tile_manag...
> cc/resources/tile_manager.h:99: // rasterizer.h
> nit: Should keep this comment and change rasterizer.h -> tile_task_runner.h

done, thanks!

[hendrikw, 2015-04-03 22:43:48]

The CQ bit was checked by hendrikw@chromium.org

[hendrikw, 2015-04-03 22:43:48]

The patchset sent to the CQ was uploaded after l-g-t-m from vmiura@chromium.org,
piman@chromium.org
Link to the patchset: https://codereview.chromium.org/1063493002/#ps40001
(title: "nit fix")

[commit-bot: I haz the power, 2015-04-03 22:44:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1063493002/40001

[commit-bot: I haz the power, 2015-04-03 22:51:09]

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

[commit-bot: I haz the power, 2015-04-03 22:51:11]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)
  mac_chromium_compile_dbg_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[hendrikw, 2015-04-03 23:17:51]

The CQ bit was checked by hendrikw@chromium.org

[hendrikw, 2015-04-03 23:17:51]

The patchset sent to the CQ was uploaded after l-g-t-m from vmiura@chromium.org,
piman@chromium.org
Link to the patchset: https://codereview.chromium.org/1063493002/#ps60001
(title: "merge")

[commit-bot: I haz the power, 2015-04-03 23:18:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1063493002/60001

[commit-bot: I haz the power, 2015-04-04 00:44:46]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-04-04 00:45:37]

Patchset 4 (id:??) landed as
https://crrev.com/59d4494849b405682265ed5d3f5164573b9a939b
Cr-Commit-Position: refs/heads/master@{#323860}