Revert 207992: This looks like a reland of r207983, which was reverted in

trunk/src/media/media.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 355 matching lines @@
         'filters/stream_parser_factory.cc',
         'filters/stream_parser_factory.h',
         'filters/video_decoder_selector.cc',
         'filters/video_decoder_selector.h',
         'filters/video_frame_stream.cc',
         'filters/video_frame_stream.h',
         'filters/video_renderer_base.cc',
         'filters/video_renderer_base.h',
         'filters/vpx_video_decoder.cc',
         'filters/vpx_video_decoder.h',
-        'midi/midi_manager.h',
-        'midi/midi_manager.cc',
-        'midi/midi_manager_mac.h',
-        'midi/midi_manager_mac.cc',
-        'midi/midi_port_info.h',
-        'midi/midi_port_info.cc',
         'video/capture/android/video_capture_device_android.cc',
         'video/capture/android/video_capture_device_android.h',
         'video/capture/fake_video_capture_device.cc',
         'video/capture/fake_video_capture_device.h',
         'video/capture/linux/video_capture_device_linux.cc',
         'video/capture/linux/video_capture_device_linux.h',
         'video/capture/mac/video_capture_device_mac.h',
         'video/capture/mac/video_capture_device_mac.mm',
         'video/capture/mac/video_capture_device_qtkit_mac.h',
         'video/capture/mac/video_capture_device_qtkit_mac.mm',
@@ skipping 142 matching lines @@
             ['include', '^base/media\\.cc$'],
             ['include', '^base/media_stub\\.cc$'],
             ['include', '^base/media_switches\\.'],
             ['include', '^base/vector_math\\.'],
           ],
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
               '$(SDKROOT)/System/Library/Frameworks/AVFoundation.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreAudio.framework',
-              '$(SDKROOT)/System/Library/Frameworks/CoreMIDI.framework',
             ],
           },
         }],
         ['OS=="android"', {
           'link_settings': {
             'libraries': [
               '-lOpenSLES',
             ],
           },
           'include_dirs': [
@@ skipping 192 matching lines @@
             'video/capture/video_capture_device_dummy.cc',
             'video/capture/video_capture_device_dummy.h',
           ],
         }],
         ['OS=="mac"', {
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
               '$(SDKROOT)/System/Library/Frameworks/AudioUnit.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreAudio.framework',
-              '$(SDKROOT)/System/Library/Frameworks/CoreMIDI.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreVideo.framework',
               '$(SDKROOT)/System/Library/Frameworks/OpenGL.framework',
               '$(SDKROOT)/System/Library/Frameworks/QTKit.framework',
             ],
           },
         }],
         ['OS=="win"', {
           'sources!': [
             'video/capture/video_capture_device_dummy.cc',
             'video/capture/video_capture_device_dummy.h',
@@ skipping 853 matching lines @@
           'sources': [
             'tools/media_bench/media_bench.cc',
           ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [ 4267, ],
         },
       ],
     }],
   ],
 }