gcapi_mac: Fix GoogleChromeCompatibilityCheck() return value

chrome/installer/gcapi_mac/gcapi.mm

Index: chrome/installer/gcapi_mac/gcapi.mm
diff --git a/chrome/installer/gcapi_mac/gcapi.mm b/chrome/installer/gcapi_mac/gcapi.mm
index 798a53966f83776cdd58dd17497e1f12c7695a3d..25e0497c2e52347ea5005af8278c9f68e0ea7fa8 100644
--- a/chrome/installer/gcapi_mac/gcapi.mm
+++ b/chrome/installer/gcapi_mac/gcapi.mm
@@ -312,10 +312,6 @@ bool isbrandchar(int c) {
 int GoogleChromeCompatibilityCheck(unsigned* reasons) {
   unsigned local_reasons = 0;
   @autoreleasepool {
-    passwd* user = GetRealUserId();
-    if (!user)
-      return GCCC_ERROR_ACCESSDENIED;
-
     if (!IsOSXVersionSupported())
       local_reasons |= GCCC_ERROR_OSNOTSUPPORTED;
 
@@ -326,7 +322,10 @@ int GoogleChromeCompatibilityCheck(unsigned* reasons) {
         local_reasons |= GCCC_ERROR_ACCESSDENIED;
     }
 
-    if (FindChromeTicket(kUserTicket, user, NULL))
+    passwd* user = GetRealUserId();
+    if (!user)
+      local_reasons |= GCCC_ERROR_ACCESSDENIED;
+    else if (FindChromeTicket(kUserTicket, user, NULL))
       local_reasons |= GCCC_ERROR_ALREADYPRESENT;
 
     if ([[NSFileManager defaultManager] fileExistsAtPath:kChromeInstallPath])
@@ -337,8 +336,8 @@ int GoogleChromeCompatibilityCheck(unsigned* reasons) {
               isWritableFileAtPath:@"/Applications"])
       local_reasons |= GCCC_ERROR_ACCESSDENIED;
     }
-
   }
+
   if (reasons != NULL)
     *reasons = local_reasons;
   return local_reasons == 0;