Web Inspector: move profiler related methods from inspector agent to profiler agent.
Created attachment 85495 [details] Patch
Attachment 85495 [details] did not build on chromium: Build output: http://queues.webkit.org/results/8141347
Attachment 85495 [details] did not build on chromium: Build output: http://queues.webkit.org/results/8132528
Created attachment 85570 [details] Patch
Committed r80928: <http://trac.webkit.org/changeset/80928>