Improve MidiManagerAlsa manufacturer reporting

media/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
@@ skipping 343 matching lines @@
   }
 
   if (use_alsa) {
     libs += [ "asound" ]
     sources += [
       "midi/midi_manager_alsa.cc",
       "midi/midi_manager_alsa.h",
     ]
   }
 
+  if (use_udev) {
+    deps += [ "//device/udev_linux" ]
+  }
+
   # A simple WebM encoder for animated avatars on ChromeOS.
 
   if (use_ozone) {
     # Used for the generated listing header (ui/ozone/platform_list.h)
     include_dirs += [ target_gen_dir ]
 
     sources += [
                  "ozone/media_ozone_platform.cc",
                  "ozone/media_ozone_platform.h",
                ] + get_target_outputs(":generate_ozone_constructor_list")
@@ skipping 290 matching lines @@
     deps += [ "//media/base/mac" ]
   }
 
   if (is_mac) {
     sources += [
       "midi/midi_manager_mac_unittest.cc",
       "video/capture/mac/video_capture_device_factory_mac_unittest.mm",
     ]
   }
 
+  if (use_alsa) {
+    sources += [ "midi/midi_manager_alsa_unittest.cc" ]
+  }
+
   #      include_dirs += [
   #        # Needed by media_drm_bridge.cc.
   #        target_gen_dir,
   #      ],
 
   configs += [ ":media_config" ]
 
   if (media_use_ffmpeg) {
     deps += [ "//third_party/ffmpeg" ]  # Direct dependency required to inherit config.
   }
@@ skipping 114 matching lines @@
     deps = [
       ":media",
       ":shared_memory_support",
       "//base",
       "//ui/gl",
       "//ui/gfx",
       "//ui/gfx/geometry",
     ]
   }
 }