Apply global CSS rules to unit tests.
Apply global CSS rules to unit tests.

See also https://codereview.appspot.com/11690043
TBR=pdr@google.com

BUG=

Review URL: https://codereview.appspot.com/11695043

git-svn-id: 3a56fcae908c7e16d23cb53443ea4795ac387cf2@781 0e6d7f2b-9903-5b78-7403-59d27f066143

bpsinc-native/src_third_party_trace-viewer,bpsinc-native/src_third_party_trace-viewer,bpsinc-native/src_third_party_trace-viewer,bpsinc-native/src_third_party_trace-viewer