[EFL] Turn on ENABLE_CSS_FILTERS
https://bugs.webkit.org/show_bug.cgi?id=133153

Reviewed by Gyuyoung Kim.

.:
* Source/cmake/OptionsEfl.cmake: Enable CSS_FILTERS as default option value.

Source/WebKit2:
Make WebKit2 compile after r166741 when CSS_FILTERS are enabled.

* Shared/CoordinatedGraphics/CoordinatedGraphicsArgumentCoders.cpp:
(IPC::ArgumentCoder<WebCore::FilterOperations>::decode):

LayoutTests:
Remove failure test expectations for tests passing after turning on CSS_FILTERS.

* platform/efl-wk2/TestExpectations:
* platform/efl/TestExpectations:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169172 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed. Actually enable snapshot tests on mac wk2.
        https://bugs.webkit.org/show_bug.cgi?id=131871

        * platform/mac-wk1/TestExpectations: Skip them here.
        * platform/mac/TestExpectations: Unskip them here.

        Some slight modifications to some of the tests to reduce flakiness of tests.
        * plugins/snapshotting/autoplay-dominant.html:
        * plugins/snapshotting/autoplay-plugin-blocked-by-image.html:
        * plugins/snapshotting/autoplay-plugin-mostly-blocked-by-image.html:
        * plugins/snapshotting/snapshot-plugin-not-quite-blocked-by-image.html: 

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169173 268f45cc-cd09-0410-ab3c-d52691b4dbfc