Revert "Fix key input."

chromecast/browser/cast_content_window.h

Index: chromecast/browser/cast_content_window.h
diff --git a/chromecast/browser/cast_content_window.h b/chromecast/browser/cast_content_window.h
index 9d76426e66741b112c532ed6992ab3eb30a1d522..8160809a1b01a5b0caf77526b2978c4b2e57ef98 100644
--- a/chromecast/browser/cast_content_window.h
+++ b/chromecast/browser/cast_content_window.h
@@ -11,10 +11,7 @@
 
 namespace aura {
 class WindowTreeHost;
-namespace test {
-class TestFocusClient;
-} // namespace test
-} // namespace aura
+}
 
 namespace content {
 class BrowserContext;
@@ -51,7 +48,6 @@ class CastContentWindow : public content::WebContentsObserver {
  private:
 #if defined(USE_AURA)
   scoped_ptr<aura::WindowTreeHost> window_tree_host_;
-  scoped_ptr<aura::test::TestFocusClient> focus_client_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(CastContentWindow);