user_manager: Remove deps on session_manager

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 f1e4d5d2b722825207d2f7b49f4e246779ed132f..3bf3b01e87a85d11d2e29c43ef215abeb31b1ad6 100644
--- a/components/session_manager/core/session_manager.cc
+++ b/components/session_manager/core/session_manager.cc
@@ -12,7 +12,7 @@ namespace session_manager {
 // static
 SessionManager* SessionManager::instance = NULL;
 
-SessionManager::SessionManager() : session_state_(SessionState::UNKNOWN) {
+SessionManager::SessionManager() {
   DCHECK(!SessionManager::Get());
   SessionManager::SetInstance(this);
 }
@@ -38,6 +38,14 @@ void SessionManager::SetSessionState(SessionState state) {
   }
 }
 
+bool SessionManager::IsSessionStarted() const {
+  return session_started_;
+}
+
+void SessionManager::SessionStarted() {
+  session_started_ = true;
+}
+
 void SessionManager::Initialize(SessionManagerDelegate* delegate) {
   DCHECK(delegate);
   delegate_.reset(delegate);
@@ -53,7 +61,7 @@ void SessionManager::Start() {
   delegate_->Start();
 }
 
-SessionManagerDelegate::SessionManagerDelegate() : session_manager_(NULL) {
+SessionManagerDelegate::SessionManagerDelegate() {
 }
 
 SessionManagerDelegate::~SessionManagerDelegate() {