Use v8::kGCCallbackFlagCollectAllAvailableGarbage in Heap::CollectAllAvailableGarbage

Use v8::kGCCallbackFlagCollectAllAvailableGarbage in Heap::CollectAllAvailableGarbage

Now that the embedder side supports v8::kGCCallbackFlagCollectAllAvailableGarbage,
this CL removes the old v8::kGCCallbackFlagForced from Heap::CollectAllAvailableGarbage.

BUG=591463
LOG=Y

Committed: https://crrev.com/9ff9592cb206ee8667120c5cbdfe6868ce498e7d
Cr-Commit-Position: refs/heads/master@{#34539}

[haraken, 2016-03-07 12:40:07]

haraken@chromium.org changed reviewers:
+ jochen@chromium.org

[haraken, 2016-03-07 12:40:08]

PTAL

[jochen (gone - plz use gerrit), 2016-03-07 12:50:35]

lgtm

[haraken, 2016-03-07 12:51:12]

The CQ bit was checked by haraken@chromium.org

[commit-bot: I haz the power, 2016-03-07 12:51:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1769893002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1769893002/1

[commit-bot: I haz the power, 2016-03-07 13:05:39]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-07 13:05:56]

Description was changed from

==========
Use v8::kGCCallbackFlagCollectAllAvailableGarbage in
Heap::CollectAllAvailableGarbage

Now that the embedder side supports
v8::kGCCallbackFlagCollectAllAvailableGarbage,
this CL removes the old v8::kGCCallbackFlagForced from
Heap::CollectAllAvailableGarbage.

BUG=591463
LOG=Y
==========

to

==========
Use v8::kGCCallbackFlagCollectAllAvailableGarbage in
Heap::CollectAllAvailableGarbage

Now that the embedder side supports
v8::kGCCallbackFlagCollectAllAvailableGarbage,
this CL removes the old v8::kGCCallbackFlagForced from
Heap::CollectAllAvailableGarbage.

BUG=591463
LOG=Y

Committed: https://crrev.com/9ff9592cb206ee8667120c5cbdfe6868ce498e7d
Cr-Commit-Position: refs/heads/master@{#34539}
==========

[commit-bot: I haz the power, 2016-03-07 13:06:00]

Patchset 1 (id:??) landed as
https://crrev.com/9ff9592cb206ee8667120c5cbdfe6868ce498e7d
Cr-Commit-Position: refs/heads/master@{#34539}