Prevent system modal dialog from blocking events to the virtual keyboard.

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index 4c12d322a5359dd7e30e1f257cfeeea142a2d0c2..8a33c470e6841f89d6ad7aa8a129dfa06b03b2a9 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -1086,6 +1086,12 @@ bool Shell::CanWindowReceiveEvents(aura::Window* window) {
     if (layout_manager && layout_manager->CanWindowReceiveEvents(window))
       return true;
   }
+
+  // Allow events to fall through to the virtual keyboard even if displaying
+  // a system modal dialog.
+  if (GetPrimaryRootWindowController()->IsVirtualKeyboardWindow(window))

[oshima, 2014/03/28 21:49:56]

can you move this to the loop above? I think it's more robust because it'll work
even if the VK moved to another root window.

[kevers, 2014/03/31 17:21:17]

Done.

+    return true;
+
   return false;
 }