Added FBO Invalidation workaround for Nexus 6.

Added FBO Invalidation workaround for Nexus 6.

We have run into a driver issue where after we invalidate a Frame
Buffer Object it gets into a state where it will randomly drop
draw calls and/or texture copies. I have added a workaround for this
issue by skipping frame buffer invalidations on Adreno 420s. This is
valid because invalidations set the frame buffer to be in an undefined
state so skipping them is technically okay, however we may lose
optimizations that could happen at the driver level for operations
being performed on an undefined FBO.

R=sievers@chromium.org, vmiura@chromium.org
BUG=443060
Committed: https://crrev.com/5f38cadcf0dd0f324f8281d9bdd8a6ed9448a9a9
Cr-Commit-Position: refs/heads/master@{#322403}

[vmiura, 2015-03-25 21:43:12]

https://codereview.chromium.org/1034663003/diff/1/gpu/command_buffer/service/...
File gpu/command_buffer/service/gles2_cmd_decoder.cc (right):

https://codereview.chromium.org/1034663003/diff/1/gpu/command_buffer/service/...
gpu/command_buffer/service/gles2_cmd_decoder.cc:4495: if
(workarounds().disable_fbo_invalidations) {
nit: no need for {} brackets.

https://codereview.chromium.org/1034663003/diff/1/gpu/config/gpu_driver_bug_l...
File gpu/config/gpu_driver_bug_list_json.cc (right):

https://codereview.chromium.org/1034663003/diff/1/gpu/config/gpu_driver_bug_l...
gpu/config/gpu_driver_bug_list_json.cc:22: "version": "7.17",
Please increment the version number here.

[David Yen, 2015-03-25 21:45:27]

https://codereview.chromium.org/1034663003/diff/1/gpu/command_buffer/service/...
File gpu/command_buffer/service/gles2_cmd_decoder.cc (right):

https://codereview.chromium.org/1034663003/diff/1/gpu/command_buffer/service/...
gpu/command_buffer/service/gles2_cmd_decoder.cc:4495: if
(workarounds().disable_fbo_invalidations) {
On 2015/03/25 21:43:11, vmiura wrote:
> nit: no need for {} brackets.

Done.

https://codereview.chromium.org/1034663003/diff/1/gpu/config/gpu_driver_bug_l...
File gpu/config/gpu_driver_bug_list_json.cc (right):

https://codereview.chromium.org/1034663003/diff/1/gpu/config/gpu_driver_bug_l...
gpu/config/gpu_driver_bug_list_json.cc:22: "version": "7.17",
On 2015/03/25 21:43:12, vmiura wrote:
> Please increment the version number here.

Done.

[vmiura, 2015-03-25 23:35:34]

LGTM with comment.

https://codereview.chromium.org/1034663003/diff/20001/gpu/config/gpu_driver_b...
File gpu/config/gpu_driver_bug_list_json.cc (right):

https://codereview.chromium.org/1034663003/diff/20001/gpu/config/gpu_driver_b...
gpu/config/gpu_driver_bug_list_json.cc:1183: "cr_bugs": [443060],
Maybe add an os type android check too, to be clear.

[David Yen, 2015-03-25 23:38:48]

https://codereview.chromium.org/1034663003/diff/20001/gpu/config/gpu_driver_b...
File gpu/config/gpu_driver_bug_list_json.cc (right):

https://codereview.chromium.org/1034663003/diff/20001/gpu/config/gpu_driver_b...
gpu/config/gpu_driver_bug_list_json.cc:1183: "cr_bugs": [443060],
On 2015/03/25 23:35:34, vmiura wrote:
> Maybe add an os type android check too, to be clear.

Done.

[no sievers, 2015-03-25 23:54:54]

lgtm

[David Yen, 2015-03-26 16:55:04]

The CQ bit was checked by dyen@chromium.org

[David Yen, 2015-03-26 16:55:04]

The patchset sent to the CQ was uploaded after l-g-t-m from vmiura@chromium.org,
sievers@chromium.org
Link to the patchset: https://codereview.chromium.org/1034663003/#ps60001
(title: "Removed extra comma in json")

[commit-bot: I haz the power, 2015-03-26 16:55:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1034663003/60001

[commit-bot: I haz the power, 2015-03-26 16:58:51]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-03-26 16:59:24]

Patchset 4 (id:??) landed as
https://crrev.com/5f38cadcf0dd0f324f8281d9bdd8a6ed9448a9a9
Cr-Commit-Position: refs/heads/master@{#322403}