Split ArcSessionManager from ArcAuthService.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 4c38d493be70b2d9e4a1422b3fa445b4ff5faea0..7ce02a0f83d5f2dba4b1d86d7923f7f10580a89e 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -204,7 +204,7 @@
 #elif defined(OS_MACOSX)
 #include "chrome/browser/chrome_browser_main_mac.h"
 #elif defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/arc/arc_auth_service.h"
+#include "chrome/browser/chromeos/arc/arc_session_manager.h"
 #include "chrome/browser/chromeos/arc/fileapi/arc_content_file_system_backend_delegate.h"
 #include "chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h"
 #include "chrome/browser/chromeos/attestation/platform_verification_impl.h"
@@ -3135,8 +3135,9 @@ ChromeContentBrowserClient::CreateThrottlesForNavigation(
       throttles.push_back(MergeSessionNavigationThrottle::Create(handle));
     }
 
-    const arc::ArcAuthService* auth_service = arc::ArcAuthService::Get();
-    if (auth_service && auth_service->IsArcEnabled() &&
+    const arc::ArcSessionManager* arc_session_manager =
+        arc::ArcSessionManager::Get();
+    if (arc_session_manager && arc_session_manager->IsArcEnabled() &&
         !handle->GetWebContents()->GetBrowserContext()->IsOffTheRecord()) {
       prerender::PrerenderContents* prerender_contents =
           prerender::PrerenderContents::FromWebContents(