binding: Makes Window/Location's attributes accessor-type properties.

third_party/WebKit/LayoutTests/fast/dom/lenient-this.html

Index: third_party/WebKit/LayoutTests/fast/dom/lenient-this.html
diff --git a/third_party/WebKit/LayoutTests/fast/dom/lenient-this.html b/third_party/WebKit/LayoutTests/fast/dom/lenient-this.html
index 6931f9b0df8e7773bb6b224ffd1ef218c4bc0063..9d73bb525f588d087f63e02c3260ab1100eacf63 100644
--- a/third_party/WebKit/LayoutTests/fast/dom/lenient-this.html
+++ b/third_party/WebKit/LayoutTests/fast/dom/lenient-this.html
@@ -18,5 +18,41 @@ test(function() {
     assert_throws(null, function() {
         Document.prototype.onmousedown = 'foo';
     }, "Document.prototype is invalid as |this|.");
-});
+}, "Test [LenientThis] and non-[LenientThis].");
+
+test(function() {
+    var noop = function() {};
+    var testPatterns = [
+      {name: 'document', instance: document, holder: Document.prototype, noninstance: window},
+      {name: 'window',  instance: window, holder: window, noninstance: document}
+    ];
+    function msg(pattern, text) {
+      return '[' + pattern.name + '] ' + text;
+    }
+    for (var p, i = 0; p = testPatterns[i]; ++i) {
+      var pd = Object.getOwnPropertyDescriptor(p.holder, 'onmouseleave');
+      // get
+      assert_equals(pd.get.call(p.noninstance), undefined, msg(p, 'get: non-instance should return undefined.'));
+      assert_equals(pd.get.call(p.instance), null, msg(p, 'get: instance should return null by default.'));
+
+      // set
+      assert_equals(pd.set.call(p.noninstance, noop), undefined, msg(p, 'set: setter always returns undefined.'));
+      assert_equals(pd.get.call(p.noninstance), undefined, msg(p, 'set: non-instance should returns undefined.'));
+      assert_equals(pd.set.call(p.instance, noop), undefined, msg(p, 'set: even instance should return undefined.'));
+      assert_equals(pd.get.call(p.instance), noop, msg(p, 'set: instance should return the assigned function.'));
+    }
+
+    // document specific tests.
+    pd = Object.getOwnPropertyDescriptor(Document.prototype, 'onmouseleave');
+    assert_equals(pd.get.call(null), undefined, '[document] get: null is not a valid instance.');
+    assert_equals(pd.get.call(undefined), undefined, '[document] get: undefined is not a valid instance.');
+
+    // window specific tests.
+    pd = Object.getOwnPropertyDescriptor(window, 'onmouseleave');
+    assert_equals(pd.get.call(null), noop, '[window] get: null should be interpreted as the global object.');
+    assert_equals(pd.get.call(undefined), noop, '[window] get: undefined should be interpreted as the global object.');
+    assert_equals(pd.set.call(undefined, null), undefined, '[window] set: returns undefined.');
+    assert_equals(pd.get.call(undefined), null, '[window] set: should be updated.');
+
+}, "Test with extracted accessors.");
 </script>