Pull up a subset of CanvasRenderingContext2D into BaseRenderingContext2D.

Pull up a subset of CanvasRenderingContext2D into BaseRenderingContext2D.

This will allow an additional sub-class of BaseRC2D called PaintRC2D.
BaseRC2D contains the subset of APIs needed for PaintRC2D.

See: https://drafts.css-houdini.org/css-paint-api/#paintrenderingcontext2d

This is a reland of: https://codereview.chromium.org/1710633002

BUG=578252
Committed: https://crrev.com/b1592675744d6ebd5f7968daf455c34703ba9488
Cr-Commit-Position: refs/heads/master@{#377628}

[ikilpatrick, 2016-02-25 00:58:16]

ikilpatrick@chromium.org changed reviewers:
+ junov@chromium.org

[ikilpatrick, 2016-02-25 00:58:17]

Had some fun with non-working trybots today.

win_blink_oilpan_dbg should pass now (which is a non-oilpan bot despite the
name).

https://codereview.chromium.org/1739553002/diff/1/third_party/WebKit/Source/m...
File third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.h
(right):

https://codereview.chromium.org/1739553002/diff/1/third_party/WebKit/Source/m...
third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.h:30:
WTF_MAKE_NONCOPYABLE(BaseRenderingContext2D);
So MSVC appearently adds its own copy assignment operators when something is
dll-exported. Which was causing the issue last time.

[Justin Novosad, 2016-02-25 16:05:28]

Thanks for figuring this out.

lgtm.

The failures in the current try look unrelated to this CL.

[Justin Novosad, 2016-02-25 16:05:39]

The CQ bit was checked by junov@chromium.org

[commit-bot: I haz the power, 2016-02-25 16:08:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1739553002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1739553002/1

[commit-bot: I haz the power, 2016-02-25 18:51:09]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-25 18:53:44]

Description was changed from

==========
Pull up a subset of CanvasRenderingContext2D into BaseRenderingContext2D.

This will allow an additional sub-class of BaseRC2D called PaintRC2D.
BaseRC2D contains the subset of APIs needed for PaintRC2D.

See: https://drafts.css-houdini.org/css-paint-api/#paintrenderingcontext2d

This is a reland of: https://codereview.chromium.org/1710633002

BUG=578252
==========

to

==========
Pull up a subset of CanvasRenderingContext2D into BaseRenderingContext2D.

This will allow an additional sub-class of BaseRC2D called PaintRC2D.
BaseRC2D contains the subset of APIs needed for PaintRC2D.

See: https://drafts.css-houdini.org/css-paint-api/#paintrenderingcontext2d

This is a reland of: https://codereview.chromium.org/1710633002

BUG=578252

Committed: https://crrev.com/b1592675744d6ebd5f7968daf455c34703ba9488
Cr-Commit-Position: refs/heads/master@{#377628}
==========

[commit-bot: I haz the power, 2016-02-25 18:53:44]

Patchset 1 (id:??) landed as
https://crrev.com/b1592675744d6ebd5f7968daf455c34703ba9488
Cr-Commit-Position: refs/heads/master@{#377628}