Clarify a comment about the geolocation content settings map...

chrome/browser/tab_contents/tab_contents.h

Index: chrome/browser/tab_contents/tab_contents.h
===================================================================
--- chrome/browser/tab_contents/tab_contents.h	(revision 42745)
+++ chrome/browser/tab_contents/tab_contents.h	(working copy)
@@ -248,8 +248,10 @@
   // page.
   bool IsContentBlocked(ContentSettingsType content_type) const;
 
-  // Returns the map of settings per origin that has used the geolocation API on
-  // this page.
+  // Returns the map of settings per frame that has used the geolocation API on
+  // this page. Note this is a full URL, not redacted to origin or otherwise.
+  // Also note this reflects the state as currently using on this page, the
+  // state in the persisted prefs map may have since changed.
   typedef std::map<GURL, ContentSetting> GeolocationContentSettings;
   const GeolocationContentSettings& geolocation_content_settings() const {
     return geolocation_content_settings_;