Generate and use cross frame wrappers for types in other frames/windows.

tests/html/html.status

Index: tests/html/html.status
diff --git a/tests/html/html.status b/tests/html/html.status
index 548625b1bde42f5e5926345c8d8996ee48960b8d..4a97d6fa0698b3dfa77bb71a9c65612f02fd71af 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -25,14 +25,11 @@ request_animation_frame_test: Skip   # drt hangs
 
 [ $compiler == frog && ($runtime == drt || $runtime == ie || $runtime == safari || $runtime == ff || $runtime == chrome || $runtime == opera) ]
 window_nosuchmethod_test: Fail # Issue 1837, frog puts top-level members in the global JS namespace.
-cross_frame_test: Fail # Issue 2774, iframe.contentDocument is accessible in dart:html frog.
-inner_frame_test: Fail # Issue 2774
 
 [ $runtime == ie || $runtime == safari || $runtime == ff || $runtime == chrome || $runtime == opera || ($runtime == drt && $compiler == frog)]
 # TODO(vsm): Triage DOM tests.
 dom_isolates_test: Fail
 indexeddb_2_test: Fail  # Issue 1883 - IndexedDB methods don't handle maps correctly.
-window_open_test: Fail
 
 [ $runtime == dartium || $runtime == chrome || $runtime == ie || $runtime == safari || $runtime == ff || $runtime == opera ]
 history_test: Fail
@@ -153,11 +150,8 @@ dom_isolates_test: Fail # error: cannot resolve spawnDomIsolate
 request_animation_frame_test: Skip # Async test hangs.
 isolates_test: Skip   # Timeout because leg does not support web workers.
 typed_arrays_1_test: Fail # dart2js doesn't support is checks with generic types.
-cross_frame_test: Fail # Issue 2774, iframe.contentDocument is accessible in dart:html
-inner_frame_test: Fail # Issue 2774
 indexeddb_3_test: Fail  # TypeError: Object #<IDBCursorWithValue> has no method 'continueFunction'
 indexeddb_4_test: Fail  # TypeError: Object #<IDBCursorWithValue> has no method 'continueFunction'
 
 # DOM errors.
 indexeddb_2_test: Fail # Uncaught error
-window_open_test: Fail # TypeError: Object [object Window] has no method 'close$0'