First pass at fixing guest browser cookies issue.

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 08470f7c6475dd95747206f62946a9c91256a6b3..6a5c723773f4030910522be5061ddd83b5480f5a 100644
--- a/chrome/browser/profiles/profile_manager.cc
+++ b/chrome/browser/profiles/profile_manager.cc
@@ -603,6 +603,17 @@ base::FilePath ProfileManager::GetSystemProfilePath() {
   return system_path.Append(chrome::kSystemProfileDir);
 }
 
+void ProfileManager::DeleteProfile(Profile* profile) {
+  DCHECK(profile->IsGuestSession());
+
+  if (BrowserList::IsOffTheRecordSessionActiveForProfile(profile))
+    return;
+
+  ProfilesInfoMap::iterator iter = profiles_info_.find(profile->GetPath());
+  DCHECK(iter != profiles_info_.end());
+  profiles_info_.erase(iter);
+}
+
 base::FilePath ProfileManager::GenerateNextProfileDirectoryPath() {
   PrefService* local_state = g_browser_process->local_state();
   DCHECK(local_state);