media: Fix build config for audio_unittests on Android

media/base/android/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/ui.gni")
 import("//media/media_options.gni")
 
 # These should compile on non-android platforms too.
@@ skipping 33 matching lines @@
     ":anywhere",
     "//media/base:test_support",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 
+  # APK targets that depend on this, either directly or indirectly, should also
+  # depend on :media_java to get the corresponding Java classes.
   source_set("android") {
     sources = [
       "android_cdm_factory.cc",
       "android_cdm_factory.h",
       "media_client_android.cc",
       "media_client_android.h",
       "media_codec_util.cc",
       "media_codec_util.h",
       "media_drm_bridge.cc",
       "media_drm_bridge.h",
@@ skipping 86 matching lines @@
       "java/src/org/chromium/media/CodecProfileLevelList.java",
       "java/src/org/chromium/media/MediaCodecBridge.java",
       "java/src/org/chromium/media/MediaCodecUtil.java",
       "java/src/org/chromium/media/MediaDrmBridge.java",
       "java/src/org/chromium/media/MediaPlayerBridge.java",
       "java/src/org/chromium/media/MediaPlayerListener.java",
       "java/src/org/chromium/media/MediaServerCrashListener.java",
     ]
   }
 }