Re-land "Only place primitive objects on the V8 global template.""

Re-land "Only place primitive objects on the V8 global template."

This reverts commit 1a35d55dd6b0d1ea1918e2d6a6c25faf599ba168.
Prevent handles from being destructed after v8 is gone.

BUG=pdfium:419
R=ochang@chromium.org

Committed: https://pdfium.googlesource.com/pdfium/+/297b515e3d53095e36991480a194b54ce887757b

[Tom Sepez, 2016-03-04 20:43:20]

Description was changed from

==========
Re-land "Only place primitive objects on the V8 global template.""

This reverts commit 1a35d55dd6b0d1ea1918e2d6a6c25faf599ba168.

BUG=pdfium:419
==========

to

==========
Re-land "Only place primitive objects on the V8 global template."

This reverts commit 1a35d55dd6b0d1ea1918e2d6a6c25faf599ba168.
Prevent handles from being destructed after v8 is gone.

BUG=pdfium:419
==========

[Tom Sepez, 2016-03-04 20:43:20]

tsepez@chromium.org changed reviewers:
+ ochang@chromium.org

[Tom Sepez, 2016-03-04 20:44:11]

ochang, manual review between ps2 and ps1 (ps1 already blessed by Jochen). 
Better to leak than crash.

[Oliver Chang, 2016-03-04 20:51:18]

lgtm

[Tom Sepez, 2016-03-04 21:34:59]

Oliver, one more quick look.

[Oliver Chang, 2016-03-04 21:36:16]

lgtm

[Tom Sepez, 2016-03-04 21:43:49]

Description was changed from

==========
Re-land "Only place primitive objects on the V8 global template."

This reverts commit 1a35d55dd6b0d1ea1918e2d6a6c25faf599ba168.
Prevent handles from being destructed after v8 is gone.

BUG=pdfium:419
==========

to

==========
Re-land "Only place primitive objects on the V8 global template."

This reverts commit 1a35d55dd6b0d1ea1918e2d6a6c25faf599ba168.
Prevent handles from being destructed after v8 is gone.

BUG=pdfium:419
R=ochang@chromium.org

Committed:
https://pdfium.googlesource.com/pdfium/+/297b515e3d53095e36991480a194b54ce887...
==========

[Tom Sepez, 2016-03-04 21:43:50]

Committed patchset #3 (id:40001) manually as
297b515e3d53095e36991480a194b54ce887757b (presubmit successful).