Migrate --enable-arc and --arc-available part 1.

chrome/browser/chromeos/login/session/chrome_session_manager.cc

Index: chrome/browser/chromeos/login/session/chrome_session_manager.cc
diff --git a/chrome/browser/chromeos/login/session/chrome_session_manager.cc b/chrome/browser/chromeos/login/session/chrome_session_manager.cc
index 66cef620218c97466e3c2f964879f17e4b1d9ad9..eb9e8326f336d6b094d84da0c8e54119ddbf3acd 100644
--- a/chrome/browser/chromeos/login/session/chrome_session_manager.cc
+++ b/chrome/browser/chromeos/login/session/chrome_session_manager.cc
@@ -33,7 +33,6 @@
 #include "chromeos/cryptohome/cryptohome_parameters.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/session_manager_client.h"
-#include "components/arc/arc_bridge_service.h"
 #include "components/prefs/pref_service.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/signin/core/browser/signin_manager.h"
@@ -106,11 +105,7 @@ void StartRestoreAfterCrashSession(Profile* user_profile,
     user_session_mgr->InitializeCRLSetFetcher(user);
     user_session_mgr->InitializeCertificateTransparencyComponents(user);
 
-    if (arc::ArcBridgeService::GetEnabled(
-            base::CommandLine::ForCurrentProcess())) {
-      arc::ArcServiceLauncher::Get()->OnPrimaryUserProfilePrepared(
-          user_profile);
-    }
+    arc::ArcServiceLauncher::Get()->OnPrimaryUserProfilePrepared(user_profile);
 
     // Send the PROFILE_PREPARED notification and call SessionStarted()
     // so that the Launcher and other Profile dependent classes are created.