Backed out changeset a6904ec3d1e0 (bug 1347710) for causing Bug 1630860 a=backout

browser/app/profile/firefox.js

@@ -1030,7 +1030,7 @@ pref("dom.ipc.shims.enabledWarnings", false);
   // For information on what the level number means, see
   // SetSecurityLevelForGPUProcess() in
   // security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp
-  pref("security.sandbox.gpu.level", 1);
+  pref("security.sandbox.gpu.level", 0);
 
   // Controls whether we disable win32k for the processes.
   // true means that win32k system calls are not permitted.

ipc/glue/GeckoChildProcessHost.cpp

@@ -580,7 +580,7 @@ void GeckoChildProcessHost::PrepareLaunch() {
       mEnableSandboxLogging || !!PR_GetEnv("MOZ_SANDBOX_LOGGING");
 
   if (ShouldHaveDirectoryService() && mProcessType == GeckoProcessType_GPU) {
-    mozilla::Unused << NS_GetSpecialDirectory(NS_APP_PROFILE_DIR_STARTUP,
+    mozilla::Unused << NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
                                               getter_AddRefs(mProfileDir));
   }
 #  endif