Add option to enable sampler.

This CL plumbs in the ability for trace_ui and devtools to enable the
sampling profiler in trace viewer.

BUG=trace-viewer:245

Review URL: https://chromiumcodereview.appspot.com/17176024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@208292 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: e6dd455c5d75391061b82aad746bd5cd474dc8fd
2 files changed
tree: 9e483ed1b8ddb7e801830ec9c05e47f495862828
  1. base/
  2. build/
  3. dbus/
  4. ipc/
  5. testing/
  6. third_party/