Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

chrome/browser/extensions/extension_browsertest.cc

Index: chrome/browser/extensions/extension_browsertest.cc
diff --git a/chrome/browser/extensions/extension_browsertest.cc b/chrome/browser/extensions/extension_browsertest.cc
index 039128654c4f3b1e13a8492da27cc2e0b99b1100..c2ec75b4a741833341bc90b711bbc1aa79325e5b 100644
--- a/chrome/browser/extensions/extension_browsertest.cc
+++ b/chrome/browser/extensions/extension_browsertest.cc
@@ -88,7 +88,7 @@ const Extension* ExtensionBrowserTest::GetExtensionByPath(
   for (ExtensionSet::const_iterator iter = extensions->begin();
        iter != extensions->end(); ++iter) {
     if ((*iter)->path() == extension_path) {
-      return *iter;
+      return iter->get();
     }
   }
   return NULL;