Fix flaky inspector/sources/debugger/event-listener-breakpoints.html test.

LayoutTests/inspector/sources/debugger/event-listener-breakpoints-xhr.html

Index: LayoutTests/inspector/sources/debugger/event-listener-breakpoints-xhr.html
diff --git a/LayoutTests/inspector/sources/debugger/event-listener-breakpoints-xhr.html b/LayoutTests/inspector/sources/debugger/event-listener-breakpoints-xhr.html
index d46bb3f7bf06dba34ffea56c73297d55f35f1458..534697cbdea59e057545b01cbba880bb64b729b8 100644
--- a/LayoutTests/inspector/sources/debugger/event-listener-breakpoints-xhr.html
+++ b/LayoutTests/inspector/sources/debugger/event-listener-breakpoints-xhr.html
@@ -81,9 +81,19 @@ function test()
             InspectorTest.addResult("Captured call stacks in no particular order:");
             callStacksOutput.sort();
             InspectorTest.addResults(callStacksOutput);
-            InspectorTest.completeDebuggerTest();
+            completeTest();
         }
     }
+
+    function completeTest()
+    {
+        pane._removeBreakpoint("listener:load");
+        pane._removeBreakpoint("listener:error");
+        pane._removeBreakpoint("listener:loadend", xhrTargetNames);
+        pane._removeBreakpoint("listener:progress", xhrTargetNames);
+        pane._removeBreakpoint("listener:readystatechange", xhrTargetNames);
+        InspectorTest.runAfterPendingDispatches(InspectorTest.completeDebuggerTest.bind(InspectorTest));
+    }
 }
 
 </script>