Pin keyboard works with virtual keyboard.

chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc b/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
index 5522675942982137d960c356b9386c512eb07ff2..63c07a7bce4891abf7d45fcb82b0d96181b8c919 100644
--- a/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
@@ -278,6 +278,10 @@ void CoreOobeHandler::ShowControlBar(bool show) {
   CallJSOrDefer("showControlBar", show);
 }
 
+void CoreOobeHandler::ShowPinKeyboard(bool show) {
+  CallJSOrDefer("showPinKeyboard", show);
+}
+
 void CoreOobeHandler::SetClientAreaSize(int width, int height) {
   CallJSOrDefer("setClientAreaSize", width, height);
 }
@@ -449,6 +453,7 @@ void CoreOobeHandler::UpdateKeyboardState() {
   if (keyboard_controller) {
     gfx::Rect bounds = keyboard_controller->current_keyboard_bounds();
     ShowControlBar(bounds.IsEmpty());
+    ShowPinKeyboard(bounds.IsEmpty());
   }
 }