Rename Ownership Transferring Methods for Prerenderer

chrome/browser/prerender/prerender_browsertest.cc

Index: chrome/browser/prerender/prerender_browsertest.cc
diff --git a/chrome/browser/prerender/prerender_browsertest.cc b/chrome/browser/prerender/prerender_browsertest.cc
index 24a5fb9906911f0a0badb496e63030802d7821a7..e4dd60b7e02227d02550777ffe5f6f9792ac0114 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -832,7 +832,7 @@ class PrerenderBrowserTest : public test_utils::PrerenderInProcessBrowserTest {
   // Returns length of |prerender_manager_|'s history, or SIZE_MAX on failure.
   size_t GetHistoryLength() const {
     std::unique_ptr<base::DictionaryValue> prerender_dict =
-        GetPrerenderManager()->GetAsValue();
+        GetPrerenderManager()->CopyAsValue();
     if (!prerender_dict)
       return std::numeric_limits<size_t>::max();
     base::ListValue* history_list;