Auto open and close the palette on an eject event.

ash/common/test/test_palette_delegate.cc

Index: ash/common/test/test_palette_delegate.cc
diff --git a/ash/common/test/test_palette_delegate.cc b/ash/common/test/test_palette_delegate.cc
index 32e8a3e7b0991ee57a51c47cb24ae935eda6d86b..c9ea9d68fde8bf6d86fdb76da71746a10b54ddc1 100644
--- a/ash/common/test/test_palette_delegate.cc
+++ b/ash/common/test/test_palette_delegate.cc
@@ -23,6 +23,14 @@ void TestPaletteDelegate::SetPartialMagnifierState(bool enabled) {
   partial_magnifier_state_ = enabled;
 }
 
+void TestPaletteDelegate::SetStylusStateChangedCallback(
+    const PaletteDelegate::OnStylusStateChangedCallback&
+        on_stylus_state_changed) {}
+
+bool TestPaletteDelegate::ShouldAutoOpenPalette() {
+  return should_auto_open_palette_;
+}
+
 void TestPaletteDelegate::TakeScreenshot() {
   ++take_screenshot_count_;
 }