[tracing] use SHA1 instead of base::Hash for memory dump GUIDs

Turns out that base::Hash is very easy to collide.
See crbug.com/503593. Switching to SHA1.

BUG=492102
NOTRY=true

Review URL: https://codereview.chromium.org/1204573005

Cr-Commit-Position: refs/heads/master@{#335676}


CrOS-Libchrome-Original-Commit: b9f284548f0660f116d9511f464984e17cf59f8c
1 file changed
tree: ce7c6f908ab553508691df92aea2a8282a721fd2
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/