WebView: fix SafeBrowsingResponse javadocs

Docs change only.

This fixes javadoc errors in SafeBrowsingResponse.java:

 * Typo: capital "B" in "onSafeBrowsingHit"
 * Add full package names
 * Add parameter lists to all linked methods

Bug: 64077668
Test: make update-api and check javadocs manually
Change-Id: I5e7b0e59ba865619b252f7e9e431ffac6e1bab1f