Only show virtual keyboard on primary root window

chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc

 // Copyright (c) 2013 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 "chrome/browser/ui/ash/ash_keyboard_controller_proxy.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/shell.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 122 matching lines @@
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AshKeyboardControllerProxy, message)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 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();
   GetInputMethod()->GetTextInputClient()->EnsureCaretInRect(showing_area);
 }
 
 void AshKeyboardControllerProxy::SetUpdateInputType(ui::TextInputType type) {
   // TODO(bshe): Need to check the affected window's profile once multi-profile
   // is supported.
   Profile* profile = ProfileManager::GetDefaultProfile();
@@ skipping 10 matching lines @@
   input_context->SetString("type",
       Context::ToString(TextInputTypeToGeneratedInputTypeEnum(type)));
   event_args->Append(input_context.release());
 
   scoped_ptr<extensions::Event> event(new extensions::Event(
       virtual_keyboard_private::OnTextInputBoxFocused::kEventName,
       event_args.Pass()));
   event->restrict_to_profile = profile;
   router->DispatchEventToExtension(kVirtualKeyboardExtensionID, event.Pass());
 }