ViewRoot class for event forwarding on Android

ui/display/test/test_screen.cc

Index: ui/display/test/test_screen.cc
diff --git a/ui/display/test/test_screen.cc b/ui/display/test/test_screen.cc
index 63e3740d5af20c562947d046d07503b07f76e3f6..4f78f4a6fd31c035afacdbc07f32e25de20e8924 100644
--- a/ui/display/test/test_screen.cc
+++ b/ui/display/test/test_screen.cc
@@ -32,5 +32,12 @@ Display TestScreen::GetDisplayNearestWindow(gfx::NativeView view) const {
   return GetPrimaryDisplay();
 }
 
+#if defined(OS_ANDROID)
+Display TestScreen::GetDisplayNearestWindowAndroid(gfx::NativeWindow window)
+      const {
+  return GetPrimaryDisplay();
+}
+#endif
+
 }  // namespace test
 }  // namespace display