Wiring metro mouse events to aura viewer

ui/views/widget/desktop_root_window_host_linux.cc

Index: ui/views/widget/desktop_root_window_host_linux.cc
===================================================================
--- ui/views/widget/desktop_root_window_host_linux.cc	(revision 160403)
+++ ui/views/widget/desktop_root_window_host_linux.cc	(working copy)
@@ -157,7 +157,6 @@
   root_window_->Init();
   root_window_->AddChild(content_window_);
   root_window_->SetLayoutManager(new DesktopLayoutManager(root_window_));
-  root_window_host_delegate_ = root_window_;
 
   // If we're given a parent, we need to mark ourselves as transient to another
   // window. Otherwise activation gets screwy.
@@ -559,6 +558,11 @@
 ////////////////////////////////////////////////////////////////////////////////
 // DesktopRootWindowHostLinux, aura::RootWindowHost implementation:
 
+void DesktopRootWindowHostLinux::SetDelegate(
+    aura::RootWindowHostDelegate* delegate) {
+  root_window_host_delegate_ = delegate;
+}
+
 aura::RootWindow* DesktopRootWindowHostLinux::GetRootWindow() {
   return root_window_;
 }