Updating test_expectations.txt overrides for media tests.
Updating test_expectations.txt overrides for media tests.

The new baselines have been trickling in from WebKit, removing the need to override the expectations.

BUG=19113
TEST=webkit tests remain green
TBR=fbarchard, sergeyu

Review URL: http://codereview.chromium.org/1706004

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@45125 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser