Mac: Remove flag to disable threaded event handling

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1328 matching lines @@
     switches::kDisableWebRTC,
     switches::kMediaDrmEnableNonCompositing,
     switches::kNetworkCountryIso,
     switches::kDisableWebAudio,
     switches::kRendererWaitForJavaDebugger,
 #endif
 #if defined(OS_MACOSX)
     // Allow this to be set when invoking the browser and relayed along.
     switches::kEnableSandboxLogging,
 #endif
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-    switches::kDisableThreadedEventHandlingMac,
-#endif
 #if defined(OS_WIN)
     switches::kDisableDirectWrite,
     switches::kEnableWin32kRendererLockDown,
     switches::kDisableWin32kRendererLockDown,
 #endif
 #if defined(OS_CHROMEOS)
     switches::kDisableVaapiAcceleratedVideoEncode,
 #endif
   };
   renderer_cmd->CopySwitchesFrom(browser_cmd, kSwitchNames,
@@ skipping 1035 matching lines @@
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 void RenderProcessHostImpl::GetAudioOutputControllers(
     const GetAudioOutputControllersCallback& callback) const {
   audio_renderer_host()->GetOutputControllers(callback);
 }
 
 }  // namespace content