GitLab

GoogleURLTrackerClient is the interface via which GoogleURLTracker will talk to
its embedder. This CL creates that interface as well as
ChromeGoogleURLTrackerClient, the //chrome implementation. The interface and
implementation are carved out of GoogleURLTrackerNavigationTracker(Impl),
specifically the parts that are not per-tab. A followup CL will modify
GoogleURLTrackerNavigationTracker to the driver interface for
GoogleURLTracker.

BUG=373220

Review URL: https://codereview.chromium.org/285193002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271638 0039d316-1c4b-4281-b951-d872f2087c98