[heap] Update verification of LO_SPACE in SizeOfInitialHeap

[heap] Update verification of LO_SPACE in SizeOfInitialHeap

On PPC64 linux the OS page size is 64KB, therefore when the
snapshot is created the serialized heap already has LO_SPACE
allocated(the allocation goes beyond the 1st page of
CODE_SPACE and hence LO_SPACE is allocated).
I've updated the testcase to check if the delta
of the LO_SPACE is zero.

R=mlippautz@chromium.org, ulan@chromium.org, vogelheim@chromium.org
BUG=

Committed: https://crrev.com/45b64d15a0e95d11be29d24faff853a1ad03bfb3
Cr-Commit-Position: refs/heads/master@{#40014}

[JaideepBajwa, 2016-10-05 15:31:12]

PTAL

[Michael Lippautz, 2016-10-05 18:41:55]

lgtm

[JaideepBajwa, 2016-10-05 18:57:30]

The CQ bit was checked by bjaideep@ca.ibm.com

[commit-bot: I haz the power, 2016-10-05 18:57:39]

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, 2016-10-05 19:47:18]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-05 19:47:32]

Description was changed from

==========
[heap] Update verification of LO_SPACE in SizeOfInitialHeap

On PPC64 linux the OS page size is 64KB, therefore when the
snapshot is created the serialized heap already has LO_SPACE
allocated(the allocation goes beyond the 1st page of
CODE_SPACE and hence LO_SPACE is allocated).
I've updated the testcase to check if the delta
of the LO_SPACE is zero.

R=mlippautz@chromium.org, ulan@chromium.org, vogelheim@chromium.org
BUG=
==========

to

==========
[heap] Update verification of LO_SPACE in SizeOfInitialHeap

On PPC64 linux the OS page size is 64KB, therefore when the
snapshot is created the serialized heap already has LO_SPACE
allocated(the allocation goes beyond the 1st page of
CODE_SPACE and hence LO_SPACE is allocated).
I've updated the testcase to check if the delta
of the LO_SPACE is zero.

R=mlippautz@chromium.org, ulan@chromium.org, vogelheim@chromium.org
BUG=

Committed: https://crrev.com/45b64d15a0e95d11be29d24faff853a1ad03bfb3
Cr-Commit-Position: refs/heads/master@{#40014}
==========

[commit-bot: I haz the power, 2016-10-05 19:47:33]

Patchset 1 (id:??) landed as
https://crrev.com/45b64d15a0e95d11be29d24faff853a1ad03bfb3
Cr-Commit-Position: refs/heads/master@{#40014}