Make record_wpr call test.WillNavigateToPage and test.DidNavigateToPage.

BUG=331607

Review URL: https://codereview.chromium.org/138643002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245333 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245333