Fix building FFMPEG into Android

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/buildflag_header.gni")
 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")
@@ skipping 358 matching lines @@
   }
 
   if (media_use_libvpx) {
     sources += [
       "filters/vpx_video_decoder.cc",
       "filters/vpx_video_decoder.h",
     ]
     deps += [ "//third_party/libvpx" ]
   }
 
-  if (disable_ffmpeg_video_decoders) {
-      sources -= [
-        "filters/decrypting_video_decoder.cc",
-        "filters/decrypting_video_decoder.h",
-      ]
-  }
-
   if (is_android) {
     sources -= [
       "filters/decrypting_audio_decoder.cc",
       "filters/decrypting_audio_decoder.h",
+      "filters/decrypting_video_decoder.cc",
+      "filters/decrypting_video_decoder.h",
     ]
     sources += [
       "filters/android/media_codec_audio_decoder.cc",
       "filters/android/media_codec_audio_decoder.h",
     ]
   }
 
   if (current_cpu != "arm" && is_chromeos) {
     sources += [
       "filters/h264_bitstream_buffer.cc",
@@ skipping 218 matching lines @@
     "//testing/gtest",
     "//third_party/libwebm",
     "//third_party/libyuv",
     "//third_party/widevine/cdm:headers",
     "//ui/gfx:test_support",
     "//url",
   ]
 
   data_deps = []
 
-  if (disable_ffmpeg_video_decoders) {
+  if (is_android) {
     sources -= [
       "filters/decrypting_audio_decoder_unittest.cc",
       "filters/decrypting_video_decoder_unittest.cc",
     ]
   }
   if (is_mac || is_ios) {
     deps += [ "//media/base/mac:unit_tests" ]
   }
 
   # If ExternalClearKey is built, we can test CdmAdapter.
@@ skipping 13 matching lines @@
     ]
 
     deps += [
       "//media/ffmpeg:ffmpeg_unittests",
 
       # Direct dependency needed for the config
       "//third_party/opus",
     ]
 
     if (!disable_ffmpeg_video_decoders) {
-      sources += [
-        "filters/ffmpeg_video_decoder_unittest.cc",
-      ]
+      # FFmpeg on Android does not include video decoders.
+      sources += [ "filters/ffmpeg_video_decoder_unittest.cc" ]
     }
   }
 
   if (current_cpu != "arm" && is_chromeos) {
     sources += [ "filters/h264_bitstream_buffer_unittest.cc" ]
   }
 
   if (proprietary_codecs) {
     sources += [
       "cdm/cenc_utils_unittest.cc",
@@ skipping 302 matching lines @@
   fuzzer_test("media_mp4_avcc_parser_fuzzer") {
     sources = [
       "formats/mp4/mp4_avcc_parser_fuzzer.cc",
     ]
     deps = [
       ":media",
       "//base",
     ]
   }
 }