Add FontFaceDescriptors IDL dictionary

Add FontFaceDescriptors IDL dictionary

To follow the spec[1]. This is the first place to use IDL dictionary
execept for testing, so this CL also includes build related changes.
Existing tests(e.g. fast/css/fontface-constructor-error.html) should
cover this change.

[1] http://dev.w3.org/csswg/css-font-loading/#fontface-interface

BUG=403150
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=181610

[bashi, 2014-08-29 07:49:04]

bashi@chromium.org changed reviewers:
+ haraken@chromium.org, ksakamoto@chromium.org

[bashi, 2014-08-29 07:49:04]

Haraken-san,

Could you review bindings and GYP/GN stuff? (GN changes is trivial, I think).

Sakamoto-san,

Could you review FontFace stuff?

Here is a draft of how IDL dictionary works:
https://docs.google.com/document/d/1mRB5zbfHd0lX2Y_Hr7g6grzP_L4Xc6_gBRjL-AE7s...

[Kunihiko Sakamoto, 2014-08-29 08:01:48]

core/css LGTM

[haraken, 2014-08-29 08:01:59]

LGTM!

https://codereview.chromium.org/481453003/diff/40001/Source/bindings/core/idl...
File Source/bindings/core/idl.gypi (right):

https://codereview.chromium.org/481453003/diff/40001/Source/bindings/core/idl...
Source/bindings/core/idl.gypi:70: '<@(webcore_testing_dependency_idl_files)',

Nit: Not related to this CL, we want to replace webcore_ with core_.

[bashi, 2014-09-09 05:09:09]

Now a bug in IDL dictionary implementation was fixed
(https://codereview.chromium.org/554893004).

I'm going to land this CL.

[bashi, 2014-09-09 05:09:19]

The CQ bit was checked by bashi@chromium.org

[commit-bot: I haz the power, 2014-09-09 05:10:08]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/bashi@chromium.org/481453003/60001

[commit-bot: I haz the power, 2014-09-09 06:11:42]

Committed patchset #4 (id:60001) as 181610

[keishi, 2014-09-09 06:40:40]

A revert of this CL (patchset #4 id:60001) has been created in
https://codereview.chromium.org/551873004/ by keishi@chromium.org.

The reason for reverting is: Broke build

http://build.chromium.org/p/chromium.webkit/builders/GPU%20Mac%20Builder/buil....