PPAPI: Remove threading options; it's always on

ppapi/shared_impl/test_globals.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ppapi/shared_impl/test_globals.h"
 
 namespace ppapi {
 
 TestGlobals::TestGlobals()
     : ppapi::PpapiGlobals(),
+      resource_tracker_(ResourceTracker::THREAD_SAFE),
       callback_tracker_(new CallbackTracker) {
 }
 
 TestGlobals::TestGlobals(PpapiGlobals::PerThreadForTest per_thread_for_test)
     : ppapi::PpapiGlobals(per_thread_for_test),
+      resource_tracker_(ResourceTracker::THREAD_SAFE),
       callback_tracker_(new CallbackTracker) {
 }
 
 TestGlobals::~TestGlobals() {
 }
 
 ResourceTracker* TestGlobals::GetResourceTracker() {
   return &resource_tracker_;
 }
 
@@ skipping 47 matching lines @@
   return NULL;
 }
 
 bool TestGlobals::IsHostGlobals() const {
   // Pretend to be the host-side, for code that expects one or the other.
   // TODO(dmichael): just make it settable which one we're pretending to be?
   return true;
 }
 
 }  // namespace ppapi