No pointer captured when the pointer lock is applied

third_party/WebKit/Source/core/dom/Element.cpp

Index: third_party/WebKit/Source/core/dom/Element.cpp
diff --git a/third_party/WebKit/Source/core/dom/Element.cpp b/third_party/WebKit/Source/core/dom/Element.cpp
index 9e22bf067b59f01a58ce245bc9a14358d1735e64..d9a7ac0d112bdb993e4813cbb41e6a1c39b29b83 100644
--- a/third_party/WebKit/Source/core/dom/Element.cpp
+++ b/third_party/WebKit/Source/core/dom/Element.cpp
@@ -3066,14 +3066,21 @@ void Element::setPointerCapture(int pointer_id,
                                 ExceptionState& exception_state) {
   if (GetDocument().GetFrame()) {
     if (!GetDocument().GetFrame()->GetEventHandler().IsPointerEventActive(
-            pointer_id))
+            pointer_id)) {
       exception_state.ThrowDOMException(kInvalidPointerId, "InvalidPointerId");
-    else if (!isConnected())
+    } else if (!isConnected()) {
       exception_state.ThrowDOMException(kInvalidStateError,
                                         "InvalidStateError");
-    else
+    } else if (GetDocument().GetPage() && GetDocument()
+                                              .GetPage()
+                                              ->GetPointerLockController()
+                                              .GetElement()) {
+      exception_state.ThrowDOMException(kInvalidStateError,
+                                        "InvalidStateError");
+    } else {
       GetDocument().GetFrame()->GetEventHandler().SetPointerCapture(pointer_id,
                                                                     this);
+    }
   }
 }