Use remembered mouse button state when simulating a mouse move in Ozone.

chrome/browser/ui/views/drag_and_drop_interactive_uitest.cc

Index: chrome/browser/ui/views/drag_and_drop_interactive_uitest.cc
diff --git a/chrome/browser/ui/views/drag_and_drop_interactive_uitest.cc b/chrome/browser/ui/views/drag_and_drop_interactive_uitest.cc
index cf9d080dbf1c12513deb1462b93d5279d6668ef0..90dd858d20dfe3a354fb5378d6e5b3a23a394a9c 100644
--- a/chrome/browser/ui/views/drag_and_drop_interactive_uitest.cc
+++ b/chrome/browser/ui/views/drag_and_drop_interactive_uitest.cc
@@ -589,14 +589,7 @@ IN_PROC_BROWSER_TEST_F(DragAndDropBrowserTest, DropTextFromOutside) {
   }
 }
 
-// The test is disabled on Ozone because of trouble with mouse simulation
-// during the test - see https://crbug.com/665042.
-#if defined(USE_OZONE)
-#define MAYBE_DragStartInFrame DISABLED_DragStartInFrame
-#else
-#define MAYBE_DragStartInFrame DragStartInFrame
-#endif
-IN_PROC_BROWSER_TEST_F(DragAndDropBrowserTest, MAYBE_DragStartInFrame) {
+IN_PROC_BROWSER_TEST_F(DragAndDropBrowserTest, DragStartInFrame) {
   std::string frame_site = "b.com";
   ASSERT_TRUE(NavigateToTestPage("a.com"));
   ASSERT_TRUE(NavigateLeftFrame(frame_site, "image_source.html"));