When receiving a key event on ChromeOS, set host lock state to match client's

remoting/host/input_injector_chromeos.cc

Index: remoting/host/input_injector_chromeos.cc
diff --git a/remoting/host/input_injector_chromeos.cc b/remoting/host/input_injector_chromeos.cc
index 65c58de51e89407aecacc3fd941a3d05a6e87ae8..1398e3f864c84e35cfefe71ce0abfe561482f073 100644
--- a/remoting/host/input_injector_chromeos.cc
+++ b/remoting/host/input_injector_chromeos.cc
@@ -60,6 +60,9 @@ class InputInjectorChromeos::Core {
   void Start(std::unique_ptr<protocol::ClipboardStub> client_clipboard);
 
  private:
+  // Sets the caps lock state to match states
+  void SetLockStates(uint32_t states);
+
   std::unique_ptr<ui::SystemInputInjector> delegate_;
   std::unique_ptr<Clipboard> clipboard_;
 
@@ -82,6 +85,10 @@ void InputInjectorChromeos::Core::InjectKeyEvent(const KeyEvent& event) {
   DCHECK(event.has_pressed());
   DCHECK(event.has_usb_keycode());
 
+  if (event.has_lock_states()) {
+    SetLockStates(event.lock_states());
+  }
+
   ui::DomCode dom_code =
       ui::KeycodeConverter::UsbKeycodeToDomCode(event.usb_keycode());
 
@@ -123,6 +130,13 @@ void InputInjectorChromeos::Core::Start(
   point_transformer_.reset(new PointTransformer());
 }
 
+void InputInjectorChromeos::Core::SetLockStates(uint32_t states) {
+  ui::InputController* input_controller =
+      ui::OzonePlatform::GetInstance()->GetInputController();
+  input_controller->SetCapsLockEnabled(
+      states & protocol::KeyEvent::LOCK_STATES_CAPSLOCK);
+}
+
 InputInjectorChromeos::InputInjectorChromeos(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner)
     : input_task_runner_(task_runner) {