Replace usage of GURL(origin.Serialize()) with origin.GetURL()

content/browser/frame_host/render_frame_message_filter.cc

Index: content/browser/frame_host/render_frame_message_filter.cc
diff --git a/content/browser/frame_host/render_frame_message_filter.cc b/content/browser/frame_host/render_frame_message_filter.cc
index e5e7bb9b322ee5076a97bc241c7f4ea14e158c7e..eedce4ad9c12acd764076bd77424ba0d9a5cb1c5 100644
--- a/content/browser/frame_host/render_frame_message_filter.cc
+++ b/content/browser/frame_host/render_frame_message_filter.cc
@@ -35,6 +35,7 @@
 #include "net/url_request/url_request_context_getter.h"
 #include "storage/browser/blob/blob_storage_context.h"
 #include "url/gurl.h"
+#include "url/origin.h"
 
 #if !defined(OS_MACOSX)
 #include "third_party/khronos/GLES2/gl2.h"
@@ -492,8 +493,7 @@ void RenderFrameMessageFilter::GetPluginsCallback(
 
   int child_process_id = -1;
   int routing_id = MSG_ROUTING_NONE;
-  GURL policy_url =
-      main_frame_origin.unique() ? GURL() : GURL(main_frame_origin.Serialize());
+  GURL policy_url = main_frame_origin.GetURL();
   // In this loop, copy the WebPluginInfo (and do not use a reference) because
   // the filter might mutate it.
   for (WebPluginInfo plugin : all_plugins) {