Implement DelegationTracker for tracking delegated permissions to RenderFrameHosts

content/test/test_render_frame_host.cc

Index: content/test/test_render_frame_host.cc
diff --git a/content/test/test_render_frame_host.cc b/content/test/test_render_frame_host.cc
index 65d8e3a17634d99e31147e598322828fd2f72139..115d6069a172c12b9e581da70aacecb2d527281a 100644
--- a/content/test/test_render_frame_host.cc
+++ b/content/test/test_render_frame_host.cc
@@ -132,6 +132,7 @@ void TestRenderFrameHost::SimulateNavigationCommit(const GURL& url) {
   params.page_id = ComputeNextPageID();
   params.nav_entry_id = 0;
   params.url = url;
+  params.origin = url::Origin(url);

[Charlie Reis, 2016/06/20 21:34:21]

Ah, interesting.  Yeah, seems like an oversight to not assign params.origin, and
this is the best we can do given only the GURL.  Seems reasonable to me if the
existing tests continue to pass.

   if (!GetParent())
     params.transition = ui::PAGE_TRANSITION_LINK;
   else if (is_auto_subframe)