Bug 695758 - Don't limit E10s event/focus handling to xul:browser, but allow also xul:iframe, r=felipe

content/events/src/nsEventStateManager.cpp

@@ -1675,7 +1675,8 @@ nsEventStateManager::DispatchCrossProcessEvent(nsEvent* aEvent, nsIFrameLoader*
 bool
 nsEventStateManager::IsRemoteTarget(nsIContent* target) {
   return target &&
-         target->Tag() == nsGkAtoms::browser &&
+         (target->Tag() == nsGkAtoms::browser ||
+          target->Tag() == nsGkAtoms::iframe) &&
          target->IsXUL() &&
          target->AttrValueIs(kNameSpaceID_None, nsGkAtoms::Remote,
                              nsGkAtoms::_true, eIgnoreCase);

dom/base/nsFocusManager.cpp

@@ -2980,7 +2980,8 @@ nsFocusManager::GetRootForFocus(nsPIDOMWindow* aWindow,
 TabParent*
 nsFocusManager::GetRemoteForContent(nsIContent* aContent) {
   if (!aContent ||
-      aContent->Tag() != nsGkAtoms::browser ||
+      (aContent->Tag() != nsGkAtoms::browser &&
+       aContent->Tag() != nsGkAtoms::iframe) ||
       !aContent->IsXUL() ||
       !aContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::Remote,
                              nsGkAtoms::_true, eIgnoreCase))