Chrome OS: avoid suspending on lid close when casting is active.

ash/shell.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accelerators/accelerator_controller.h"
@@ skipping 356 matching lines @@
         internal::kShellWindowId_LockSystemModalContainer,
         GetPrimaryRootWindow());
     for (std::vector<aura::Window*>::const_iterator iter = containers.begin();
          iter != containers.end(); ++iter) {
       DCHECK_EQ(0u, (*iter)->children().size());
     }
   }
 #endif
 }
 
+void Shell::OnScreenSharingStateChanged(bool started) {
+#if defined(OS_CHROMEOS) && defined(USE_X11)
+  if (output_configurator_)
+    output_configurator_->OnScreenSharingStateChanged(started);
+#endif
+}
+
 void Shell::CreateShelf() {
   RootWindowControllerList controllers = GetAllRootWindowControllers();
   for (RootWindowControllerList::iterator iter = controllers.begin();
        iter != controllers.end(); ++iter)
     (*iter)->shelf()->CreateShelf();
 }
 
 void Shell::CreateKeyboard() {
   // TODO(bshe): Primary root window controller may not be the controller to
   // attach virtual keyboard. See http://crbug.com/303429
@@ skipping 643 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, aura::client::ActivationChangeObserver implementation:
 
 void Shell::OnWindowActivated(aura::Window* gained_active,
                               aura::Window* lost_active) {
   if (gained_active)
     target_root_window_ = gained_active->GetRootWindow();
 }
 
 }  // namespace ash