diff -up chromium-61.0.3163.79/third_party/ffmpeg/ffmpeg_generated.gni.aarch64 chromium-61.0.3163.79/third_party/ffmpeg/ffmpeg_generated.gni
--- chromium-61.0.3163.79/third_party/ffmpeg/ffmpeg_generated.gni.aarch64	2017-09-06 14:34:36.247232957 -0400
+++ chromium-61.0.3163.79/third_party/ffmpeg/ffmpeg_generated.gni	2017-09-06 14:36:37.632892363 -0400
@@ -537,7 +537,7 @@ if (use_linux_config && current_cpu == "
   ]
 }
 
-if ((is_android && current_cpu == "arm64" && ffmpeg_branding == "Chrome") || (use_linux_config && current_cpu == "arm64" && ffmpeg_branding == "Chrome") || (use_linux_config && current_cpu == "arm64" && ffmpeg_branding == "ChromeOS")) {
+if ((is_android && current_cpu == "arm64" && ffmpeg_branding == "Chrome") || (use_linux_config && current_cpu == "arm64" && ffmpeg_branding == "Chrome") || (use_linux_config && current_cpu == "arm64" && ffmpeg_branding == "ChromeOS") || (use_linux_config && current_cpu == "arm64" && ffmpeg_branding == "Chromium")) {
   ffmpeg_c_sources += [
     "libavcodec/aarch64/mpegaudiodsp_init.c",
   ]