session_manager: Create ChromeSessionManager early

components/session_manager/core/session_manager.cc

Index: components/session_manager/core/session_manager.cc
diff --git a/components/session_manager/core/session_manager.cc b/components/session_manager/core/session_manager.cc
index 3bf3b01e87a85d11d2e29c43ef215abeb31b1ad6..3d2c4b5a40a2ee3c4065859e6925897290fed1ba 100644
--- a/components/session_manager/core/session_manager.cc
+++ b/components/session_manager/core/session_manager.cc
@@ -46,30 +46,9 @@ void SessionManager::SessionStarted() {
   session_started_ = true;
 }
 
-void SessionManager::Initialize(SessionManagerDelegate* delegate) {
-  DCHECK(delegate);
-  delegate_.reset(delegate);
-  delegate_->SetSessionManager(this);
-}
-
 // static
 void SessionManager::SetInstance(SessionManager* session_manager) {
   SessionManager::instance = session_manager;
 }
 
-void SessionManager::Start() {
-  delegate_->Start();
-}
-
-SessionManagerDelegate::SessionManagerDelegate() {
-}
-
-SessionManagerDelegate::~SessionManagerDelegate() {
-}
-
-void SessionManagerDelegate::SetSessionManager(
-    session_manager::SessionManager* session_manager) {
-  session_manager_ = session_manager;
-}
-
 }  // namespace session_manager