GitLab

Port UpdateHistoryAndBookmarks and UpdateSearchTerms to use a
base::CancelableTaskTracker instead of a CancelableRequestConsumer.

BUG=371818

Review URL: https://codereview.chromium.org/368283003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284069 0039d316-1c4b-4281-b951-d872f2087c98