Check whether a number is passed as an argument to kJSSetZoomLevel rather than a double.

Check whether a number is passed as an argument to kJSSetZoomLevel rather than a double.

In the in-process PDF plugin when checking the argument type of kJSSetZoomLevel
calls to the plugin we would check if the argument is a double. But it may be
an int and we really want to check if it's a number. This probably worked in
the past by chance and broke when we switched to using gin to implement JS
bindings for Pepper.

BUG=413525
Committed: https://crrev.com/69d475766c08be6411a8751861b3d09fcd24783d
Cr-Commit-Position: refs/heads/master@{#295008}

[raymes, 2014-09-16 03:08:09]

raymes@chromium.org changed reviewers:
+ thestig@chromium.org

[Lei Zhang, 2014-09-16 03:24:23]

lgtm

[raymes, 2014-09-16 03:32:45]

The CQ bit was checked by raymes@chromium.org

[commit-bot: I haz the power, 2014-09-16 03:37:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/569403004/1

[commit-bot: I haz the power, 2014-09-16 04:47:29]

Committed patchset #1 (id:1) as 21ba4d21f087dee438456eda8db8e7042f12ab0c

[commit-bot: I haz the power, 2014-09-16 04:51:16]

Patchset 1 (id:??) landed as
https://crrev.com/69d475766c08be6411a8751861b3d09fcd24783d
Cr-Commit-Position: refs/heads/master@{#295008}