Reland of [wasm] Add a JavaScript utility to make it easier to build WASM modules from JavaScript.

Reland of [wasm] Add a JavaScript utility to make it easier to build WASM modules from JavaScript. (patchset #1 id:1 of https://codereview.chromium.org/1768963002/ )

Reason for revert:
Fix landed in head.

Original issue's description:
> Revert of [wasm] Add a JavaScript utility to make it easier to build WASM modules from JavaScript. (patchset #1 id:1 of https://codereview.chromium.org/1774463002/ )
>
> Reason for revert:
> [Sheriff] Problem is not fixed:
> https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20shared/builds/8799
>
> Original issue's description:
> > [wasm] Add a JavaScript utility to make it easier to build WASM modules from JavaScript.
> >
> > This is a reland of https://codereview.chromium.org/1762203002/
> >
> > R=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org
> > BUG=
> >
> > Committed: https://crrev.com/aa5770805060a347c6b650634c736ba34ab61728
> > Cr-Commit-Position: refs/heads/master@{#34519}
>
> TBR=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org,titzer@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=

TBR=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/701e520b2bea1b70073e48959d97ee32a89cc73c
Cr-Commit-Position: refs/heads/master@{#34523}

[Michael Achenbach, 2016-03-07 10:01:08]

Created Reland of [wasm] Add a JavaScript utility to make it easier to build
WASM modules from JavaScript.

[commit-bot: I haz the power, 2016-03-07 10:01:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1769863002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1769863002/1

[commit-bot: I haz the power, 2016-03-07 10:01:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-07 10:03:09]

Description was changed from

==========
Reland of [wasm] Add a JavaScript utility to make it easier to build WASM
modules from JavaScript. (patchset #1 id:1 of
https://codereview.chromium.org/1768963002/ )

Reason for revert:
Fix landed in head.

Original issue's description:
> Revert of [wasm] Add a JavaScript utility to make it easier to build WASM
modules from JavaScript. (patchset #1 id:1 of
https://codereview.chromium.org/1774463002/ )
> 
> Reason for revert:
> [Sheriff] Problem is not fixed:
>
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20shared/build...
> 
> Original issue's description:
> > [wasm] Add a JavaScript utility to make it easier to build WASM modules from
JavaScript.
> > 
> > This is a reland of https://codereview.chromium.org/1762203002/
> > 
> > R=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org
> > BUG=
> > 
> > Committed: https://crrev.com/aa5770805060a347c6b650634c736ba34ab61728
> > Cr-Commit-Position: refs/heads/master@{#34519}
> 
>
TBR=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org,titzer@ch...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=

TBR=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org,titzer@ch...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Reland of [wasm] Add a JavaScript utility to make it easier to build WASM
modules from JavaScript. (patchset #1 id:1 of
https://codereview.chromium.org/1768963002/ )

Reason for revert:
Fix landed in head.

Original issue's description:
> Revert of [wasm] Add a JavaScript utility to make it easier to build WASM
modules from JavaScript. (patchset #1 id:1 of
https://codereview.chromium.org/1774463002/ )
>
> Reason for revert:
> [Sheriff] Problem is not fixed:
>
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20shared/build...
>
> Original issue's description:
> > [wasm] Add a JavaScript utility to make it easier to build WASM modules from
JavaScript.
> >
> > This is a reland of https://codereview.chromium.org/1762203002/
> >
> > R=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org
> > BUG=
> >
> > Committed: https://crrev.com/aa5770805060a347c6b650634c736ba34ab61728
> > Cr-Commit-Position: refs/heads/master@{#34519}
>
>
TBR=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org,titzer@ch...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=

TBR=ahaas@chromium.org,binji@chromium.org,seththompson@chromium.org,titzer@ch...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/701e520b2bea1b70073e48959d97ee32a89cc73c
Cr-Commit-Position: refs/heads/master@{#34523}
==========

[commit-bot: I haz the power, 2016-03-07 10:03:09]

Patchset 1 (id:??) landed as
https://crrev.com/701e520b2bea1b70073e48959d97ee32a89cc73c
Cr-Commit-Position: refs/heads/master@{#34523}