[heap] Unify accounting committed memory across all spaces.

[heap] Unify accounting committed memory across all spaces.

Untangles committed memory from capacity in a given space and unifies accounting
for all spaces.

Pre-work for parallel compaction.

R=hpayer@chromium.org
BUG=chromium:524425
LOG=N

Committed: https://crrev.com/465caac813d428feb35ee2209133a4f6f6d396aa
Cr-Commit-Position: refs/heads/master@{#31149}

[Michael Lippautz, 2015-10-07 11:05:37]

Patchset #1 (id:1) has been deleted

[Michael Lippautz, 2015-10-07 11:05:43]

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

[commit-bot: I haz the power, 2015-10-07 11:05:49]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1388383002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1388383002/20001

[Michael Lippautz, 2015-10-07 11:15:08]

mlippautz@chromium.org changed reviewers:
+ hpayer@chromium.org

[Michael Lippautz, 2015-10-07 11:15:08]

PTAL; 

We already have tests that check against committed memory and they were failing
left and right until all accounting was in place.

[commit-bot: I haz the power, 2015-10-07 11:42:41]

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

[commit-bot: I haz the power, 2015-10-07 11:42:42]

Dry run: This issue passed the CQ dry run.

[Hannes Payer (out of office), 2015-10-07 11:43:35]

LGTM

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h
File src/heap/spaces.h (right):

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h#newco...
src/heap/spaces.h:928: // headers.
... i.e., allocatable memory and page headers.

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h#newco...
src/heap/spaces.h:2523: // Committed memory for NewSpace is the committed memory
of both semi spaces
semi-spaces

[Michael Lippautz, 2015-10-07 11:48:09]

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h
File src/heap/spaces.h (right):

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h#newco...
src/heap/spaces.h:928: // headers.
On 2015/10/07 11:43:35, Hannes Payer wrote:
> ... i.e., allocatable memory and page headers.

Done.

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h#newco...
src/heap/spaces.h:2523: // Committed memory for NewSpace is the committed memory
of both semi spaces
On 2015/10/07 11:43:35, Hannes Payer wrote:
> semi-spaces

Done.

[Michael Lippautz, 2015-10-07 11:48:09]

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h
File src/heap/spaces.h (right):

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h#newco...
src/heap/spaces.h:928: // headers.
On 2015/10/07 11:43:35, Hannes Payer wrote:
> ... i.e., allocatable memory and page headers.

Done.

https://codereview.chromium.org/1388383002/diff/20001/src/heap/spaces.h#newco...
src/heap/spaces.h:2523: // Committed memory for NewSpace is the committed memory
of both semi spaces
On 2015/10/07 11:43:35, Hannes Payer wrote:
> semi-spaces

Done.

[Michael Lippautz, 2015-10-07 11:48:14]

The CQ bit was checked by mlippautz@chromium.org

[Michael Lippautz, 2015-10-07 11:48:15]

The patchset sent to the CQ was uploaded after l-g-t-m from hpayer@chromium.org
Link to the patchset: https://codereview.chromium.org/1388383002/#ps40001
(title: "Addressed comments")

[commit-bot: I haz the power, 2015-10-07 11:48:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1388383002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1388383002/40001

[commit-bot: I haz the power, 2015-10-07 12:11:58]

Committed patchset #2 (id:40001)

[commit-bot: I haz the power, 2015-10-07 12:12:11]

Patchset 2 (id:??) landed as
https://crrev.com/465caac813d428feb35ee2209133a4f6f6d396aa
Cr-Commit-Position: refs/heads/master@{#31149}