Pepper: Add a property to URLRequestInfo to skip header validation.

ppapi/c/ppb_url_request_info.h

Index: ppapi/c/ppb_url_request_info.h
diff --git a/ppapi/c/ppb_url_request_info.h b/ppapi/c/ppb_url_request_info.h
index 1369c314031febe99d63cd61cf1f1e2f5153f61e..a2a7047e6b219cc99ca5e89973e9671a966df799 100644
--- a/ppapi/c/ppb_url_request_info.h
+++ b/ppapi/c/ppb_url_request_info.h
@@ -41,14 +41,21 @@ typedef enum {
   // URLLoader.GetUploadProgress function.
   //
   // Boolean (default = PP_FALSE).
-  PP_URLREQUESTPROPERTY_RECORDUPLOADPROGRESS
+  PP_URLREQUESTPROPERTY_RECORDUPLOADPROGRESS,
+
+  // Set to true to allow, e.g., arbitrary headers to be set.  The
+  // URLRequestInfo object will only be usable with a loader which has universal
+  // access (only available on trusted implementations).
+  //
+  // Boolean (default = PP_FALSE).
+  PP_URLREQUESTPROPERTY_UNIVERSALACCESS
 } PP_URLRequestProperty;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_URLRequestProperty, 4);
 /**
  * @}
  */
 
-#define PPB_URLREQUESTINFO_INTERFACE "PPB_URLRequestInfo;0.2"
+#define PPB_URLREQUESTINFO_INTERFACE "PPB_URLRequestInfo;0.3"
 
 /**
  *