Only show virtual keyboard on primary root window

chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc

Index: chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
diff --git a/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc b/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
index dfa012a09a59b4f35900f14a4225181c6c0f565b..2b5c833b9c459dfe3fc981de3834a7b89d57adc9 100644
--- a/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
+++ b/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
@@ -140,6 +140,11 @@ bool AshKeyboardControllerProxy::OnMessageReceived(
 
 void AshKeyboardControllerProxy::ShowKeyboardContainer(
     aura::Window* container) {
+  // TODO(bshe): Implement logic to decide which root window should display
+  // virtual keyboard. http://crbug.com/303429
+  if (container->GetRootWindow() != ash::Shell::GetPrimaryRootWindow())
+    NOTIMPLEMENTED();
+
   KeyboardControllerProxy::ShowKeyboardContainer(container);
   gfx::Rect showing_area =
       ash::DisplayController::GetPrimaryDisplay().work_area();