Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/chrome_info_map_unittest.cc

Index: chrome/browser/extensions/chrome_info_map_unittest.cc
diff --git a/chrome/browser/extensions/chrome_info_map_unittest.cc b/chrome/browser/extensions/chrome_info_map_unittest.cc
index afa7befc13e0143469d270c578a7e53c3540fbe6..a22a1c154f9ed00d973bf067ffb313175a069f9e 100644
--- a/chrome/browser/extensions/chrome_info_map_unittest.cc
+++ b/chrome/browser/extensions/chrome_info_map_unittest.cc
@@ -25,7 +25,7 @@ scoped_refptr<Extension> LoadManifest(const std::string& dir,
   path = path.AppendASCII("extensions").AppendASCII(dir).AppendASCII(test_file);
 
   JSONFileValueDeserializer deserializer(path);
-  scoped_ptr<base::Value> result = deserializer.Deserialize(NULL, NULL);
+  std::unique_ptr<base::Value> result = deserializer.Deserialize(NULL, NULL);
   if (!result)
     return NULL;