[Views] Move modality tests from widget_unittest.cc to desktop_native_widget_aura_unittest.cc.

ui/views/test/test_views.h

Index: ui/views/test/test_views.h
diff --git a/ui/views/test/test_views.h b/ui/views/test/test_views.h
index 8c490dc98381d4457d44ceed851c7f235f8a0848..28cc27600b799c14c47a4444286f74255f380589 100644
--- a/ui/views/test/test_views.h
+++ b/ui/views/test/test_views.h
@@ -75,6 +75,44 @@ class CloseWidgetView : public View {
   DISALLOW_COPY_AND_ASSIGN(CloseWidgetView);
 };
 
+// A view that keeps track of the events it receives, optionally consuming them.
+class EventCountView : public View {
+ public:
+  // Whether to call SetHandled() on events as they are received. For some event
+  // types, this will allow EventCountView to receives future events in the
+  // event sequence, such as a drag.
+  enum HandleMode { PROPAGATE_EVENTS, CONSUME_EVENTS };
+
+  EventCountView();
+  ~EventCountView() override;
+
+  int GetEventCount(ui::EventType type);
+  void ResetCounts();
+
+  int last_flags() const { return last_flags_; }
+
+  void set_handle_mode(HandleMode handle_mode) { handle_mode_ = handle_mode; }
+
+ protected:
+  // Overridden from View:
+  void OnMouseMoved(const ui::MouseEvent& event) override;
+
+  // Overridden from ui::EventHandler:
+  void OnKeyEvent(ui::KeyEvent* event) override;
+  void OnMouseEvent(ui::MouseEvent* event) override;
+  void OnScrollEvent(ui::ScrollEvent* event) override;
+  void OnGestureEvent(ui::GestureEvent* event) override;
+
+ private:
+  void RecordEvent(ui::Event* event);
+
+  std::map<ui::EventType, int> event_count_;
+  int last_flags_;
+  HandleMode handle_mode_;
+
+  DISALLOW_COPY_AND_ASSIGN(EventCountView);
+};
+
 }  // namespace views
 
 #endif  // UI_VIEWS_TEST_TEST_VIEWS_H_