Missed images and missed new lines in the expected results of the imported w3c canvas...

Missed images and missed new lines in the expected results of the imported w3c canvas layout tests.
https://bugs.webkit.org/show_bug.cgi?id=140409.

Patch by Said Abou-Hallawa <sabouhallawa@apple.com> on 2015-01-13
Reviewed by Dean Jackson.
LayoutTests/imported/w3c:

Fix some failures in the imported W3C canvas tests. These failures were happening because
of missing images or missing new lines at the end of the expected results.

* canvas/2d.pattern.paint.repeat.basic-expected.txt:
* canvas/2d.pattern.paint.repeat.outside-expected.txt:
* canvas/2d.pattern.paint.repeatx.basic-expected.txt:
* canvas/2d.pattern.paint.repeaty.basic-expected.txt:
* canvas/resources/background.png: Added.
* canvas/resources/green-16x16.png: Added.
* common/canvas-tests.css:

LayoutTests:

Fix some failures in the imported W3C canvas tests. These failures were happening because
of missing images or missing new lines at the end of the expected results.

* TestExpectations:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@178386 268f45cc-cd09-0410-ab3c-d52691b4dbfc