Fixes 105886

ui/aura/desktop.cc

Index: ui/aura/desktop.cc
diff --git a/ui/aura/desktop.cc b/ui/aura/desktop.cc
index fd2e38acbe21d73ed44bd2aa4a1cced14104cbcf..afef67006a0d32fe5ed2aee06b0ee57e983b70ed 100644
--- a/ui/aura/desktop.cc
+++ b/ui/aura/desktop.cc
@@ -468,7 +468,13 @@ bool Desktop::ProcessMouseEvent(Window* target, MouseEvent* event) {
       return true;
   }
 
-  return target->delegate()->OnMouseEvent(event);
+  bool handled = false;
+  for (Window* window = target; !handled && window; window = window->parent()) {

[Ben Goodger (Google), 2011/12/08 19:10:26]

So, after discovering how this feature is implemented on windows, my objection
now becomes that you're doing this here on Desktop, rather than just
reconstructing the same hack in RWHVA that RWHVW has. :-)

+    if (window->delegate())
+      handled = window->delegate()->OnMouseEvent(event);
+  }
+
+  return handled;
 }
 
 bool Desktop::ProcessKeyEvent(Window* target, KeyEvent* event) {