Multi-Profiles: Pass profile directories by reference

chrome/browser/profiles/profile_manager.cc

Index: chrome/browser/profiles/profile_manager.cc
diff --git a/chrome/browser/profiles/profile_manager.cc b/chrome/browser/profiles/profile_manager.cc
index cc3647cb380fb3657554d71cfadb0f76335210fe..f0f5f44b6ae23158cde92afc31c474bd641baf76 100644
--- a/chrome/browser/profiles/profile_manager.cc
+++ b/chrome/browser/profiles/profile_manager.cc
@@ -43,9 +43,9 @@
 
 namespace {
 
-void DeleteProfileDirectories(std::vector<FilePath> paths) {
+void DeleteProfileDirectories(const std::vector<FilePath>& paths) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  for (std::vector<FilePath>::iterator it = paths.begin();
+  for (std::vector<FilePath>::const_iterator it = paths.begin();
        it != paths.end(); ++it) {
     file_util::Delete(*it, true);
   }