Partial revert of r161493.

LayoutTests/fast/canvas/webgl/context-lost-restored.html

Index: LayoutTests/fast/canvas/webgl/context-lost-restored.html
diff --git a/LayoutTests/fast/canvas/webgl/context-lost-restored.html b/LayoutTests/fast/canvas/webgl/context-lost-restored.html
index 91e25765b8c2b8caae2ce79a38cb4f1a9cdd53a6..906ea435f0c828265833c7d69c48d7bb8e094dc9 100644
--- a/LayoutTests/fast/canvas/webgl/context-lost-restored.html
+++ b/LayoutTests/fast/canvas/webgl/context-lost-restored.html
@@ -5,8 +5,6 @@
 <script src="resources/webgl-test.js"></script>
 <script src="resources/webgl-test-utils.js"></script>
 <script>
-window.jsTestIsAsync = true;
-
 if (window.internals)
     window.internals.settings.setWebGLErrorsToConsoleEnabled(false);
 
@@ -95,7 +93,7 @@ function testLosingAndRestoringContext()
       // restore the context after this event has exited.
       setTimeout(function() {
         shouldGenerateGLError(gl, gl.NO_ERROR, "extension.restoreContext()");
-        // The context should still be lost. It will not get restored until the
+        // The context should still be lost. It will not get restored until the 
         // webglrestorecontext event is fired.
         shouldBeTrue("gl.isContextLost()");
         shouldBe("gl.getError()", "gl.NO_ERROR");