Refactors keyboard related code so mash can use a keyboard

ash/test/test_shell_delegate.h

Index: ash/test/test_shell_delegate.h
diff --git a/ash/test/test_shell_delegate.h b/ash/test/test_shell_delegate.h
index f6872faa5e24be729384eda3ccbd47a31efb61f3..8c79eadda294081607bad6056db9e277994192eb 100644
--- a/ash/test/test_shell_delegate.h
+++ b/ash/test/test_shell_delegate.h
@@ -67,7 +67,7 @@ class TestShellDelegate : public ShellDelegate {
   void SetMediaCaptureState(MediaCaptureState state);
   void SetForceMaximizeOnFirstRun(bool maximize) {
     force_maximize_on_first_run_ = maximize;
-  };
+  }
 
  private:
   int num_exit_requests_;