Extracted media mime type checks from net/base/ into media/base/

content/content_common.gypi

 # 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../components/tracing.gyp:tracing',
     '../gpu/command_buffer/command_buffer.gyp:gles2_utils',
     '../net/net.gyp:net',
@@ skipping 394 matching lines @@
       'common/media/media_stream_track_metrics_host_messages.h',
       'common/media/midi_messages.h',
       'common/media/video_capture.h',
       'common/media/video_capture_messages.h',
       'common/media/webrtc_identity_messages.h',
       'common/memory_benchmark_messages.h',
       'common/message_port_messages.h',
       'common/message_router.cc',
       'common/message_router.h',
       'common/mime_registry_messages.h',
+      'common/mime_util.cc',
+      'common/mime_util.h',
       'common/mojo/mojo_messages.h',
       'common/mojo/service_registry_impl.cc',
       'common/mojo/service_registry_impl.h',
       'common/navigation_gesture.h',
       'common/navigation_params.cc',
       'common/navigation_params.h',
       'common/navigator_connect_messages.h',
       'common/net/url_fetcher.cc',
       'common/net/url_request_user_data.cc',
       'common/net/url_request_user_data.h',
@@ skipping 610 matching lines @@
         'common/gpu/client/gpu_memory_buffer_impl_ozone.cc',
         'common/gpu/client/gpu_memory_buffer_impl_ozone_native_buffer.cc',
         'common/gpu/client/gpu_memory_buffer_impl_ozone_native_buffer.h',
         'common/gpu/gpu_memory_buffer_factory_ozone.cc',
         'common/gpu/gpu_memory_buffer_factory_ozone_native_buffer.cc',
         'common/gpu/gpu_memory_buffer_factory_ozone_native_buffer.h',
       ],
     }],
   ],
 }