Fix typo'd usage of OS_MAC vs OS_MACOSX!

media/filters/audio_renderer_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.
 
 #include "media/filters/audio_renderer_impl.h"
 
 #include <math.h>
 
 #include <algorithm>
 
@@ skipping 213 matching lines @@
   }
 
   int sample_rate = decoder_->samples_per_second();
   int buffer_size = GetHighLatencyOutputBufferSize(sample_rate);
   AudioParameters::Format format = AudioParameters::AUDIO_PCM_LINEAR;
 
   // On Windows and Mac we can use the low latency pipeline because they provide
   // accurate and smooth delay information.  On other platforms like Linux there
   // are jitter issues.
   // TODO(dalecurtis): Fix bugs: http://crbug.com/138098 http://crbug.com/32757
-#if defined(OS_WIN) || defined(OS_MAC)
+#if defined(OS_WIN) || defined(OS_MACOSX)
   const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
   // Either AudioOutputResampler or renderer side mixing must be enabled to use
   // the low latency pipeline.
   if (!cmd_line->HasSwitch(switches::kDisableRendererSideMixing) ||
       !cmd_line->HasSwitch(switches::kDisableAudioOutputResampler)) {
     // There are two cases here:
     //
     // 1. Renderer side mixing is enabled and the buffer size is actually
     //    controlled by the size of the AudioBus provided to Render().  In this
     //    case the buffer size below is ignored.
@@ skipping 384 matching lines @@
     case kUnderflow:
     case kRebuffering:
     case kStopped:
       if (status != PIPELINE_OK)
         error_cb_.Run(status);
       return;
   }
 }
 
 }  // namespace media