Send mouse exited event after mouse release outside view.

ui/views/widget/widget_unittest.cc

Index: ui/views/widget/widget_unittest.cc
diff --git a/ui/views/widget/widget_unittest.cc b/ui/views/widget/widget_unittest.cc
index ec0f1eb5cc8a4a66b0a81ad8bf0bfd9c254b4b2b..98f72e821b5244b3579f7f2963c0e829facf3a08 100644
--- a/ui/views/widget/widget_unittest.cc
+++ b/ui/views/widget/widget_unittest.cc
@@ -3641,6 +3641,56 @@ TEST_F(WidgetTest, WidgetRemovalsObserverCalledWhenMovingBetweenWidgets) {
   widget->RemoveRemovalsObserver(&removals_observer);
 }
 
+// Tests that we don't get Exited notification when we're handling the dragging
+// operation. When we stop the drag outside of Widget's bounds we should get the
+// Exited notification when the mouse capture will be released.
+TEST_F(WidgetTest, MouseExitOnMouseReleaseOutsideView) {
+  Widget* widget = CreateTopLevelNativeWidget();
+  widget->SetBounds(gfx::Rect(0, 0, 300, 300));
+  EventCountView* mock_view = new EventCountView();
+  widget->GetContentsView()->AddChildView(mock_view);
+  mock_view->SetBounds(0, 0, 300, 300);
+  widget->Show();
+
+  // Use an event generator to ask views code to set the cursor. However, note
+  // that this does not cause Cocoa to generate tracking rectangle updates.
+  ui::test::EventGenerator event_generator(GetContext(),
+                                           widget->GetNativeWindow());
+
+  event_generator.MoveMouseTo(gfx::Point(50, 50));
+  EXPECT_EQ(1, mock_view->GetEventCount(ui::ET_MOUSE_ENTERED));
+  EXPECT_EQ(1, mock_view->GetEventCount(ui::ET_MOUSE_MOVED));
+  mock_view->ResetCounts();
+
+
+  mock_view->set_handle_mode(EventCountView::CONSUME_EVENTS);
+  event_generator.PressLeftButton();
+  EXPECT_EQ(1, mock_view->GetEventCount(ui::ET_MOUSE_PRESSED));
+  mock_view->set_handle_mode(EventCountView::PROPAGATE_EVENTS);
+  mock_view->ResetCounts();
+
+  EXPECT_TRUE(widget->HasCapture());
+
+  mock_view->set_handle_mode(EventCountView::CONSUME_EVENTS);
+  event_generator.MoveMouseTo(gfx::Point(-50, -50));
+  // The mouse exited event should not be received, if we have capture.
+  EXPECT_EQ(0, mock_view->GetEventCount(ui::ET_MOUSE_EXITED));
+  EXPECT_EQ(1, mock_view->GetEventCount(ui::ET_MOUSE_DRAGGED));
+  mock_view->set_handle_mode(EventCountView::PROPAGATE_EVENTS);
+  mock_view->ResetCounts();
+
+  event_generator.ReleaseLeftButton();
+  EXPECT_EQ(1, mock_view->GetEventCount(ui::ET_MOUSE_RELEASED));
+  // The mouse exited event should be received, after mouse released
+  // outside view bounds.
+  EXPECT_EQ(1, mock_view->GetEventCount(ui::ET_MOUSE_EXITED));
+  mock_view->ResetCounts();
+
+  EXPECT_FALSE(widget->HasCapture());
+
+  widget->CloseNow();
+}
+
 // Test dispatch of ui::ET_MOUSEWHEEL.
 TEST_F(WidgetTest, MouseWheelEvent) {
   WidgetAutoclosePtr widget(CreateTopLevelPlatformWidget());