binding: Makes non-cross-origin-accessible attrs be accessor props.

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..39a6c864cc50fae61abf1b9af2123b2f77c95fdd 100644
--- a/third_party/WebKit/LayoutTests/fast/dom/lenient-this.html
+++ b/third_party/WebKit/LayoutTests/fast/dom/lenient-this.html
@@ -4,19 +4,54 @@
 <script src="../../resources/testharnessreport.js"></script>
 <script>
 test(function() {
-    // GlobalEventHandlers.onmouseenter is [LenientThis].
-    assert_equals(document.onmouseenter, null, "|this| is an appropriate object.");
-    assert_equals(Document.prototype.onmouseenter, undefined, "|this| is not an appropriate object.");
-    Document.prototype.onmouseenter = 'foo'; // must not throw.
-    assert_equals(Document.prototype.onmouseenter, undefined, "the value must not change.");
+  // GlobalEventHandlers.onmouseenter is [LenientThis].
+  assert_equals(document.onmouseenter, null, "|this| is an appropriate object.");
+  assert_equals(Document.prototype.onmouseenter, undefined, "|this| is not an appropriate object.");
+  Document.prototype.onmouseenter = 'foo'; // must not throw.
+  assert_equals(Document.prototype.onmouseenter, undefined, "the value must not change.");
 
-    // GlobalEventHandlers.onmousedown is NOT [LenientThis].
-    assert_equals(document.onmousedown, null, "|this| is an appropriate object.");
-    assert_throws(null, function() {
-        Document.prototype.onmousedown;
-    }, "Document.prototype is invalid as |this|.");
-    assert_throws(null, function() {
-        Document.prototype.onmousedown = 'foo';
-    }, "Document.prototype is invalid as |this|.");
-});
+  // GlobalEventHandlers.onmousedown is NOT [LenientThis].
+  assert_equals(document.onmousedown, null, "|this| is an appropriate object.");
+  assert_throws(null, function() {
+    Document.prototype.onmousedown;
+  }, "Document.prototype is invalid as |this|.");
+  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>