Testing: Fixed printing FilePaths when a test fails comparing them.

base/files/file_path.cc

Index: base/files/file_path.cc
diff --git a/base/files/file_path.cc b/base/files/file_path.cc
index 33d5ca1b8847f5726f74e10c39366f232de5ab4e..e3e84139c626730e6298ac1fa6eab06cffd7843f 100644
--- a/base/files/file_path.cc
+++ b/base/files/file_path.cc
@@ -1317,8 +1317,8 @@ bool FilePath::IsContentUri() const {
 }
 #endif
 
-}  // namespace base
-
-void PrintTo(const base::FilePath& path, std::ostream* out) {
+void PrintTo(const FilePath& path, std::ostream* out) {
   *out << path.value();
 }
+
+}  // namespace base