bindings: Makes Location [Unforgeable].

Per the spec, Location interface must be [Unforgeable].

Missing [Unforgeable] on Location interface is causing that
it's impossible to stringify a Location object by running
    JSON.stringify(window.location)

BUG=491006

Review URL: https://codereview.chromium.org/1148803003

git-svn-id: svn://svn.chromium.org/blink/trunk@195968 bbb929c8-8fbe-4397-9dbb-9b2b20218538
diff --git a/third_party/WebKit/LayoutTests/TestExpectations b/third_party/WebKit/LayoutTests/TestExpectations
index 1e9ef82d..f53b4ea 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -1732,3 +1732,6 @@
 crbug.com/492511 [ Mac ] virtual/antialiasedtext/fast/text/atsui-spacing-features.html [ ImageOnlyFailure ]
 crbug.com/492511 [ Mac ] virtual/antialiasedtext/fast/text/vertical-rl-rtl-linebreak.html [ ImageOnlyFailure ]
 crbug.com/492511 [ Mac ] virtual/antialiasedtext/fast/text/international/arabic-justify.html [ ImageOnlyFailure ]
+
+# Temporary, until [Unforgeable] attributes have the right accessors 'get' and 'set'.
+crbug.com/491006 http/tests/security/cross-origin-access-over-property-descriptor.html [ Failure ]