Implement URL and Origin typemaps/struct traits for blink.

url/url.gyp

Index: url/url.gyp
diff --git a/url/url.gyp b/url/url.gyp
index 1e491f5741d817ccc5498911467054855950ca4e..67871067276296d29a6de42e84734742cbe10da2 100644
--- a/url/url.gyp
+++ b/url/url.gyp
@@ -134,6 +134,22 @@
       'includes': [ '../mojo/mojom_bindings_generator_explicit.gypi' ],
     },
     {
+      'target_name': 'url_interfaces_mojom_for_blink',
+      'type': 'none',
+      'variables': {
+        'for_blink': 'true',
+        'mojom_files': [
+          'mojo/origin.mojom',
+          'mojo/url.mojom',
+        ],
+        'mojom_typemaps': [
+          '../third_party/WebKit/Source/platform/mojo/KURL.typemap',
+          '../third_party/WebKit/Source/platform/mojo/SecurityOrigin.typemap',
+        ],
+      },
+      'includes': [ '../mojo/mojom_bindings_generator_explicit.gypi' ],
+    },
+    {
       'target_name': 'url_mojom',
       'type': 'static_library',
       'export_dependent_settings': [
@@ -163,6 +179,24 @@
       ],
     },
     {
+      'target_name': 'url_test_interfaces_mojom_for_blink',
+      'type': 'none',
+      'variables': {
+        'for_blink': 'true',
+        'mojom_files': [
+          'mojo/url_test.mojom',
+        ],
+        'mojom_typemaps': [
+          '../third_party/WebKit/Source/platform/mojo/KURL.typemap',
+          '../third_party/WebKit/Source/platform/mojo/SecurityOrigin.typemap',
+        ],
+      },
+      'includes': [ '../mojo/mojom_bindings_generator_explicit.gypi' ],
+      'dependencies': [
+        '../mojo/mojo_public.gyp:mojo_cpp_bindings',
+      ],
+    },
+    {
       'target_name': 'url_test_mojom',
       'type': 'static_library',
       'export_dependent_settings': [