Make Window.prototype.toString return [object Window] at all times.

LayoutTests/http/tests/security/cross-frame-window-to-tostring-expected.txt

Index: LayoutTests/http/tests/security/cross-frame-window-to-tostring-expected.txt
diff --git a/LayoutTests/http/tests/security/cross-frame-window-to-tostring-expected.txt b/LayoutTests/http/tests/security/cross-frame-window-to-tostring-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..75527c4ec31fad3464891e575569baa367d0eaf2
--- /dev/null
+++ b/LayoutTests/http/tests/security/cross-frame-window-to-tostring-expected.txt
@@ -0,0 +1,39 @@
+ 
+PASS successfullyParsed is true
+
+TEST COMPLETE
+PASS window + '' is "[object Window]"
+PASS window.toString() is "[object Window]"
+FAIL Object.prototype.toString.call(window) should be [object Window]. Was [object global].
+FAIL Window.prototype + '' should be [object WindowPrototype]. Was [object Window].
+FAIL Window.prototype.toString() should be [object WindowPrototype]. Was [object Window].
+FAIL Object.prototype.toString.call(Window.prototype) should be [object WindowPrototype]. Was [object Object].
+FAIL window + '' should be [object iii]. Was [object Window].
+FAIL window.toString() should be [object iii]. Was [object Window].
+PASS Object.prototype.toString.call(window) is "[object iii]"
+FAIL Window.prototype + '' should be [object WindowPrototype]. Was [object Window].
+FAIL Window.prototype.toString() should be [object WindowPrototype]. Was [object Window].
+FAIL Object.prototype.toString.call(Window.prototype) should be [object WindowPrototype]. Was [object Object].
+FAIL window + '' should be [object jjj]. Was [object Window].
+FAIL window.toString() should be [object jjj]. Was [object Window].
+PASS Object.prototype.toString.call(window) is "[object jjj]"
+FAIL Window.prototype + '' should be [object jjj]. Was [object Window].
+FAIL Window.prototype.toString() should be [object jjj]. Was [object Window].
+PASS Object.prototype.toString.call(Window.prototype) is "[object jjj]"
+
+Testing local iframe
+FAIL w + '' should be [object inner]. Was [object Window].
+FAIL w.toString() should be [object inner]. Was [object Window].
+PASS Object.prototype.toString.call(w) is "[object inner]"
+FAIL w + '' should be [object kkk]. Was [object Window].
+FAIL w.toString() should be [object kkk]. Was [object Window].
+PASS Object.prototype.toString.call(w) is "[object kkk]"
+FAIL w + '' should be [object inner]. Was [object Window].
+FAIL w.toString() should be [object inner]. Was [object Window].
+FAIL Object.prototype.toString.call(w) should be [object inner]. Was [object global].
+
+Testing remote iframe
+PASS w + '' threw exception SecurityError: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a cross-origin frame..
+FAIL w.toString() should throw SecurityError: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a cross-origin frame.. Was [object Window].
+PASS Object.prototype.toString.call(w) threw exception SecurityError: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a cross-origin frame..
+