Add LevelDB database names to tracing path for easier debugging

The data from field trials show large databases, but not sure what are
their names. So, adding names to the path.

BUG=645126

Review-Url: https://codereview.chromium.org/2399903004
Cr-Commit-Position: refs/heads/master@{#424055}


CrOS-Libchrome-Original-Commit: 279f8d702e8b2fffda1b7f50b311c5202331e121
1 file changed
tree: 744cadd01ff3bc575f10ecd357f6c1315cc40afa
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/