Store PaintPropertyTreeBuilderContext inline

Store PaintPropertyTreeBuilderContext inline

PaintPropertyTreeBuilderContext used to be heap-allocated to minimize
stack pressure.  Now that PrePaintTreeWalkContext is also
heap-allocated, there is no reason to have separate allocations.

Also USING_FAST_MALLOC for PrePaintTreeWalkContext.

BUG=700996
R=pdr@chromium.org,wangxianzhu@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

[f(malita), 2017-03-14 18:33:01]

Description was changed from

==========
Store PaintPropertyTreeBuilderContext inline

PaintPropertyTreeBuilderContext used to be heap-allocated to minimize
stack pressure.  Now that PrePaintTreeWalkContext is also
heap-allocated, there is no reason to have separate allocations.

Also USING_FAST_MALLOC for PrePaintTreeWalkContext.

BUG=700996
R=pdr@chromium.org,wangxianzhu@chromium.org
==========

to

==========
Store PaintPropertyTreeBuilderContext inline

PaintPropertyTreeBuilderContext used to be heap-allocated to minimize
stack pressure.  Now that PrePaintTreeWalkContext is also
heap-allocated, there is no reason to have separate allocations.

Also USING_FAST_MALLOC for PrePaintTreeWalkContext.

BUG=700996
R=pdr@chromium.org,wangxianzhu@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[f(malita), 2017-03-14 18:33:10]

The CQ bit was checked by fmalita@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-03-14 18:34:04]

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

[f(malita), 2017-03-14 18:34:23]

Description was changed from

==========
Store PaintPropertyTreeBuilderContext inline

PaintPropertyTreeBuilderContext used to be heap-allocated to minimize
stack pressure.  Now that PrePaintTreeWalkContext is also
heap-allocated, there is no reason to have separate allocations.

Also USING_FAST_MALLOC for PrePaintTreeWalkContext.

BUG=700996
R=pdr@chromium.org,wangxianzhu@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Store PaintPropertyTreeBuilderContext inline

PaintPropertyTreeBuilderContext used to be heap-allocated to minimize
stack pressure.  Now that PrePaintTreeWalkContext is also
heap-allocated, there is no reason to have separate allocations.

Also USING_FAST_MALLOC for PrePaintTreeWalkContext.

BUG=700996
R=pdr@chromium.org,wangxianzhu@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[f(malita), 2017-03-14 18:34:23]

fmalita@chromium.org changed reviewers:
- pdr@chromium.org, wangxianzhu@chromium.org