Introduce url::Origin to represent Web Origin.

content/public/common/common_param_traits.h

Index: content/public/common/common_param_traits.h
diff --git a/content/public/common/common_param_traits.h b/content/public/common/common_param_traits.h
index 18a0ee088acdc0b6b3311867781c70885a9199e7..8800fe12194e972058a0922b8be083cb0f199de3 100644
--- a/content/public/common/common_param_traits.h
+++ b/content/public/common/common_param_traits.h
@@ -14,6 +14,8 @@
 #ifndef CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_
 #define CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_
 
+#include <string>
+
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
 #include "content/public/common/common_param_traits_macros.h"
@@ -21,6 +23,7 @@
 #include "ui/gfx/native_widget_types.h"
 #include "ui/surface/transport_dib.h"
 #include "url/gurl.h"
+#include "url/origin.h"
 
 class SkBitmap;
 
@@ -51,6 +54,14 @@ struct CONTENT_EXPORT ParamTraits<GURL> {
   static void Log(const param_type& p, std::string* l);
 };
 
+template <>
+struct CONTENT_EXPORT ParamTraits<url::Origin> {
+  typedef url::Origin param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
+
 template<>
 struct CONTENT_EXPORT ParamTraits<net::HostPortPair> {
   typedef net::HostPortPair param_type;