Don't crash for mismatched histogram parms.

These mismatches shouldn't happen but crashing is a fairly severe
response for the released products.  Just report the error.

Bug: 756948
Change-Id: Ia8f249afafec1e8ddf054a2a818b78b2ffd98132
Reviewed-on: https://chromium-review.googlesource.com/1012469
Reviewed-by: Gayane Petrosyan <gayane@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Commit-Queue: Brian White <bcwhite@chromium.org>
Cr-Commit-Position: refs/heads/master@{#552089}

CrOS-Libchrome-Original-Commit: a958cc71329c9926f639c7836f61c812b9f0f003
3 files changed
tree: c9ec148d2965a91238af5641843851a1d75d0baa
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/