Reduce string copies in GURL creation

content/renderer/shared_worker/embedded_shared_worker_stub.cc

Index: content/renderer/shared_worker/embedded_shared_worker_stub.cc
diff --git a/content/renderer/shared_worker/embedded_shared_worker_stub.cc b/content/renderer/shared_worker/embedded_shared_worker_stub.cc
index 39b0d3526e3e727e9220a30e8eff9347dd6c926d..dbf272786bc466f8f4b9fce584b145ee41d00a18 100644
--- a/content/renderer/shared_worker/embedded_shared_worker_stub.cc
+++ b/content/renderer/shared_worker/embedded_shared_worker_stub.cc
@@ -21,6 +21,7 @@
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/shared_worker/embedded_shared_worker_content_settings_client_proxy.h"
 #include "ipc/ipc_message_macros.h"
+#include "third_party/WebKit/public/platform/URLConversion.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
@@ -229,7 +230,7 @@ blink::WebWorkerContentSettingsClientProxy*
     EmbeddedSharedWorkerStub::createWorkerContentSettingsClientProxy(
     const blink::WebSecurityOrigin& origin) {
   return new EmbeddedSharedWorkerContentSettingsClientProxy(
-      GURL(origin.toString()),
+      blink::WebStringToGURL(origin.toString()),
       origin.isUnique(),
       route_id_,
       ChildThreadImpl::current()->thread_safe_sender());