Clear out some minor TODOs.

BUG=none

Review URL: https://codereview.chromium.org/1047063002

Cr-Commit-Position: refs/heads/master@{#322959}
const char* AutofillDialogViews::SectionContainer::GetClassName() const {
  return kSectionContainerClassName;
}

const char* AutofillDialogViews::SectionContainer::GetClassName() const {
  return kSectionContainerClassName;
}
