IDL compiler: [GenerateVisitDOMWrapper] interfaces

Straightforward; like [CustomVisitDOMWrapper] but generates a function.

Docs:
https://sites.google.com/a/chromium.org/dev/blink/webidl/blink-idl-extended-attributes#TOC-GenerateVisitDOMWrapper-i-

BUG=239771
NOTRY=true

Review URL: https://codereview.chromium.org/100993002

git-svn-id: svn://svn.chromium.org/blink/trunk@163055 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove -expected.html entries from TestExpectations

These were inadvertently added and are no-ops (except they make text
autosizing look bad on Ojan's layouttest report!)

TBR=skobes

Review URL: https://codereview.chromium.org/100383004

git-svn-id: svn://svn.chromium.org/blink/trunk@163057 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[HTML Imports]: Starting import support for stylesheets

This change is adding <style> support for import.
StyleEngine now traverses import tree to collect acitve stylsheets.
Also, stylesheet modifications on imports are notified to the mater.

Note that This doesn't load external stylesheet yet.

BUG=319151
R=esprehn,tasak,dglazkov
TEST=import-style-basic.html

Review URL: https://codereview.chromium.org/80753002

git-svn-id: svn://svn.chromium.org/blink/trunk@163058 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove unused event listener types.

Remove ObjCEventListenerType and GObjectEventListenerType. They are unused
in Blink.

BUG=none
TEST=none; no behavior changes.

Review URL: https://codereview.chromium.org/100703003

git-svn-id: svn://svn.chromium.org/blink/trunk@163059 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Make FontResource DecodeError status when font data is empty

This patch fixes a bug that loadingerror event is not reported when
font data is empty. FontResource::ensure{Custom,SVG}FontData should
set DecodeError status if data is empty (i.e. m_data is null).

BUG=53213
TEST=fast/css/fontfaceset-multiple-families.html

Review URL: https://codereview.chromium.org/98723002

git-svn-id: svn://svn.chromium.org/blink/trunk@163061 bbb929c8-8fbe-4397-9dbb-9b2b20218538