Send Mouse Leave events all the time when we get a ET_MOUSE_EXITED

ui/events/blink/blink_features.cc

Index: ui/events/blink/blink_features.cc
diff --git a/ui/events/blink/blink_features.cc b/ui/events/blink/blink_features.cc
index 427ccf2563735d340bd9a1416b80e8f3769f1950..13e9c1c77e5dbe4951f82235c5aa9e4d63fd0611 100644
--- a/ui/events/blink/blink_features.cc
+++ b/ui/events/blink/blink_features.cc
@@ -11,14 +11,6 @@ namespace features {
 const base::Feature kVsyncAlignedInputEvents{"VsyncAlignedInput",
                                              base::FEATURE_DISABLED_BY_DEFAULT};
 
-const base::Feature kSendMouseLeaveEvents {
-  "SendMouseLeaveEvents",
-// TODO(chaopeng) this fix only for chromeos now, should convert ET_MOUSE_EXITED
-// to MouseLeave when crbug.com/450631 fixed.
-#if defined(OS_CHROMEOS)
-      base::FEATURE_ENABLED_BY_DEFAULT
-#else
-      base::FEATURE_DISABLED_BY_DEFAULT
-#endif
-};
+const base::Feature kSendMouseLeaveEvents{"SendMouseLeaveEvents",
+                                          base::FEATURE_ENABLED_BY_DEFAULT};
 }