Reduce string copies in GURL creation

content/renderer/drop_data_builder.cc

Index: content/renderer/drop_data_builder.cc
diff --git a/content/renderer/drop_data_builder.cc b/content/renderer/drop_data_builder.cc
index beb98b6dec2c20976ec126df03a6d89024dac9cd..cc5f2eb37f9d3f90084c37cdb3eff490f2c1795c 100644
--- a/content/renderer/drop_data_builder.cc
+++ b/content/renderer/drop_data_builder.cc
@@ -7,6 +7,7 @@
 #include <stddef.h>
 
 #include "base/strings/string_util.h"
+#include "content/public/child/url_conversion.h"
 #include "content/public/common/drop_data.h"
 #include "third_party/WebKit/public/platform/WebDragData.h"
 #include "third_party/WebKit/public/platform/WebString.h"
@@ -34,7 +35,7 @@ DropData DropDataBuilder::Build(const WebDragData& drag_data) {
           break;
         }
         if (base::EqualsASCII(str_type, ui::Clipboard::kMimeTypeURIList)) {
-          result.url = GURL(item.stringData);
+          result.url = WebStringToGURL(item.stringData);
           result.url_title = item.title;
           break;
         }