This replaces https://codereview.webrtc.org/1313233005 which was reverted after triggering Chromium issues. The only difference is that we're cleaned up dependencies on use_openssl from the gyp file. Since https://codereview.chromium.org/1358913003 landed, this CL should cause no Chromium issues. BUG=webrtc:4497 Review URL: https://codereview.webrtc.org/1351503004 Cr-Commit-Position: refs/heads/master@{#10019}