[chromium] HTML5 audio/video tags - loading http content from https page doesn't...

[chromium] HTML5 audio/video tags - loading http content from https page doesn't trigger warning.
https://bugs.webkit.org/show_bug.cgi?id=89906

Reviewed by Nate Chapin.

This patch treats mixed CachedRawResources as affecting the display of insecure content.

Source/WebCore:

Tests: http/tests/security/mixedContent/insecure-audio-video-in-main-frame.html
       http/tests/security/mixedContent/insecure-xhr-in-main-frame.html

* loader/cache/CachedResourceLoader.cpp:
(WebCore::CachedResourceLoader::checkInsecureContent):

LayoutTests:

* http/tests/security/mixedContent/insecure-audio-video-in-main-frame-expected.txt: Added.
* http/tests/security/mixedContent/insecure-audio-video-in-main-frame.html: Added.
* http/tests/security/mixedContent/insecure-xhr-in-main-frame-expected.txt: Added.
* http/tests/security/mixedContent/insecure-xhr-in-main-frame.html: Added.
* http/tests/security/mixedContent/resources/frame-with-insecure-audio-video.html: Added.
* platform/efl/TestExpectations:
* platform/gtk/TestExpectations:
* platform/mac/TestExpectations:
* platform/qt/TestExpectations:
* platform/win/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@121297 268f45cc-cd09-0410-ab3c-d52691b4dbfc