Use TypeChecking=Unrestricted on Internal* interfaces

Use TypeChecking=Unrestricted on Internal* interfaces

These interfaces should generally not be used for testing the types of
IDL edge-cases that non-finite numbers imply, so make all float/double
parameters 'restricted'.

BUG=354298
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=190358

[fs, 2015-02-16 16:57:58]

fs@opera.com changed reviewers:
+ pdr@chromium.org

[fs, 2015-02-16 17:35:58]

This could really go either way - strict or non-strict - I couldn't think of a
good reason for these to be non-strict though.

[fs, 2015-02-17 15:45:58]

fs@opera.com changed reviewers:
+ philipj@opera.com

[fs, 2015-02-17 15:45:59]

Philip^2

[pdr., 2015-02-17 22:29:09]

The CQ bit was checked by pdr@chromium.org

[pdr., 2015-02-17 22:29:10]

LGTM

[commit-bot: I haz the power, 2015-02-17 22:29:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/930933002/1

[commit-bot: I haz the power, 2015-02-17 22:38:15]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=190358