net: Move UnescapeRule into the net namespace.

chrome/test/ui/ui_layout_test.cc

Index: chrome/test/ui/ui_layout_test.cc
diff --git a/chrome/test/ui/ui_layout_test.cc b/chrome/test/ui/ui_layout_test.cc
index 9db47f02dd7e9bd049a9fae2761b70c7441421f2..93e321c1ad6b6d6d9f516bf8d3809aa847ebcaa3 100644
--- a/chrome/test/ui/ui_layout_test.cc
+++ b/chrome/test/ui/ui_layout_test.cc
@@ -236,8 +236,8 @@ void UILayoutTest::RunLayoutTest(const std::string& test_case_file_name,
 
   // Unescapes and normalizes the actual result.
   std::string value = net::UnescapeURLComponent(escaped_value,
-      UnescapeRule::NORMAL | UnescapeRule::SPACES |
-          UnescapeRule::URL_SPECIAL_CHARS | UnescapeRule::CONTROL_CHARS);
+      net::UnescapeRule::NORMAL | net::UnescapeRule::SPACES |
+      net::UnescapeRule::URL_SPECIAL_CHARS | net::UnescapeRule::CONTROL_CHARS);
   value += "\n";
   ReplaceSubstringsAfterOffset(&value, 0, "\r", "");