Unmark http/tests/inspector/styles/selector-line-sourcemap-header-deprecated.html as flaky following r153999
Unmark http/tests/inspector/styles/selector-line-sourcemap-header-deprecated.html as flaky following r153999

TBR=dimich

Review URL: https://codereview.chromium.org/18344018

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@154011 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs