Changing command line flag from disable appcontainer to enable appcontainer.

content/common/sandbox_win.cc

Index: content/common/sandbox_win.cc
diff --git a/content/common/sandbox_win.cc b/content/common/sandbox_win.cc
index f6d9cf258729da3ece34b36fbde8386427e94da7..3e0dbc0484693fe4c75e38e405b30b7d41cb114d 100644
--- a/content/common/sandbox_win.cc
+++ b/content/common/sandbox_win.cc
@@ -581,7 +581,7 @@ void AddAppContainerPolicy(sandbox::TargetPolicy* policy, const wchar_t* sid) {
       base::win::GetVersion() == base::win::VERSION_WIN8_1) {
     const base::CommandLine& command_line =
         *base::CommandLine::ForCurrentProcess();
-    if (!command_line.HasSwitch(switches::kDisableAppContainer)) {
+    if (command_line.HasSwitch(switches::kEnableAppContainer)) {
       policy->SetLowBox(sid);
     }
   }