Implement granular cross-origin XHR for extensions.

chrome/common/render_messages.h

Index: chrome/common/render_messages.h
diff --git a/chrome/common/render_messages.h b/chrome/common/render_messages.h
index ee8c7516d7a922bde627b71e2fe3e8941921b032..e1d8d2bdb21b1814823649e7225ef83e91199480 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -17,6 +17,7 @@
 #include "chrome/common/common_param_traits.h"
 #include "chrome/common/css_colors.h"
 #include "chrome/common/extensions/update_manifest.h"
+#include "chrome/common/extensions/url_pattern.h"
 #include "chrome/common/filter_policy.h"
 #include "chrome/common/modal_dialog_event.h"
 #include "chrome/common/page_transition_types.h"
@@ -2039,6 +2040,25 @@ struct ParamTraits<UpdateManifest::Result> {
   }
 };
 
+// Traits for URLPattern.
+template <>
+struct ParamTraits<URLPattern> {
+  typedef URLPattern param_type;
+  static void Write(Message* m, const param_type& p) {
+    WriteParam(m, p.GetAsString());
+  }
+  static bool Read(const Message* m, void** iter, param_type* p) {
+    std::string spec;
+    if (!ReadParam(m, iter, &spec))
+      return false;
+
+    return p->Parse(spec);
+  }
+  static void Log(const param_type& p, std::wstring* l) {
+    LogParam(p.GetAsString(), l);
+  }
+};
+
 }  // namespace IPC