Remove cruft from ffmpeg....

third_party/ffmpeg/ffmpeg.gyp

 # Copyright (c) 2009 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.
 
 {
   'target_defaults': {
     'conditions': [
       ['OS!="linux" and OS!="freebsd"', {'sources/': [['exclude', '/linux/']]}],
       ['OS!="mac"', {'sources/': [['exclude', '/mac/']]}],
       ['OS!="win"', {'sources/': [['exclude', '/win/']]}],
@@ skipping 116 matching lines @@
             'source/patched-ffmpeg-mt/libavformat/mp3.c',
             'source/patched-ffmpeg-mt/libavformat/oggdec.c',
             'source/patched-ffmpeg-mt/libavformat/oggparseogm.c',
             'source/patched-ffmpeg-mt/libavformat/oggparsetheora.c',
             'source/patched-ffmpeg-mt/libavformat/oggparsevorbis.c',
             'source/patched-ffmpeg-mt/libavformat/options.c',
             'source/patched-ffmpeg-mt/libavformat/os_support.c',
             'source/patched-ffmpeg-mt/libavformat/riff.c',
             'source/patched-ffmpeg-mt/libavformat/sdp.c',
             'source/patched-ffmpeg-mt/libavformat/utils.c',
-            'source/patched-ffmpeg-mt/libavutil/adler32.c',
-            'source/patched-ffmpeg-mt/libavutil/aes.c',
             'source/patched-ffmpeg-mt/libavutil/avstring.c',
-            'source/patched-ffmpeg-mt/libavutil/base64.c',
             'source/patched-ffmpeg-mt/libavutil/crc.c',
-            'source/patched-ffmpeg-mt/libavutil/des.c',
-            'source/patched-ffmpeg-mt/libavutil/fifo.c',
             'source/patched-ffmpeg-mt/libavutil/intfloat_readwrite.c',
-            'source/patched-ffmpeg-mt/libavutil/lfg.c',
-            'source/patched-ffmpeg-mt/libavutil/lls.c',
             'source/patched-ffmpeg-mt/libavutil/log.c',
-            'source/patched-ffmpeg-mt/libavutil/lzo.c',
             'source/patched-ffmpeg-mt/libavutil/mathematics.c',
-            'source/patched-ffmpeg-mt/libavutil/md5.c',
             'source/patched-ffmpeg-mt/libavutil/mem.c',
-            'source/patched-ffmpeg-mt/libavutil/random_seed.c',
             'source/patched-ffmpeg-mt/libavutil/rational.c',
-            'source/patched-ffmpeg-mt/libavutil/rc4.c',
-            'source/patched-ffmpeg-mt/libavutil/sha1.c',
-            'source/patched-ffmpeg-mt/libavutil/tree.c',
-            'source/patched-ffmpeg-mt/libavutil/utils.c',
 
             # Config file for the OS and architecture.
             'source/config/<(ffmpeg_branding)/<(OS)/<(target_arch)/config.h',
           ],
           'include_dirs': [
             'source/config/<(ffmpeg_branding)/<(OS)/<(target_arch)',
             'source/patched-ffmpeg-mt',
           ],
           'cflags': [
             '-DHAVE_AV_CONFIG_H',
@@ skipping 214 matching lines @@
         '<(target_for_binaries)',
         'ffmpeg_binaries',
       ],
       'sources': [
         '<(ffmpeg_include_root)/libavcodec/avcodec.h',
         '<(ffmpeg_include_root)/libavcodec/opt.h',
         '<(ffmpeg_include_root)/libavcodec/vdpau.h',
         '<(ffmpeg_include_root)/libavcodec/xvmc.h',
         '<(ffmpeg_include_root)/libavformat/avformat.h',
         '<(ffmpeg_include_root)/libavformat/avio.h',
-        '<(ffmpeg_include_root)/libavutil/adler32.h',
         '<(ffmpeg_include_root)/libavutil/avstring.h',
-        '<(ffmpeg_include_root)/libavutil/avutil.h',
-        '<(ffmpeg_include_root)/libavutil/base64.h',
-        '<(ffmpeg_include_root)/libavutil/common.h',
         '<(ffmpeg_include_root)/libavutil/crc.h',
-        '<(ffmpeg_include_root)/libavutil/fifo.h',
         '<(ffmpeg_include_root)/libavutil/intfloat_readwrite.h',
         '<(ffmpeg_include_root)/libavutil/log.h',
-        '<(ffmpeg_include_root)/libavutil/lzo.h',
         '<(ffmpeg_include_root)/libavutil/mathematics.h',
-        '<(ffmpeg_include_root)/libavutil/md5.h',
         '<(ffmpeg_include_root)/libavutil/mem.h',
         '<(ffmpeg_include_root)/libavutil/pixfmt.h',
         '<(ffmpeg_include_root)/libavutil/rational.h',
-        '<(ffmpeg_include_root)/libavutil/sha1.h',
 
         # Hacks to introduce C99 types into Visual Studio.
         'include/win/inttypes.h',
         'include/win/stdint.h',
 
         # Files needed for stub generation rules.
         '<@(sig_files)',
         '<(extra_header)'
       ],
       'hard_dependency': 1,
@@ skipping 170 matching lines @@
       ],
     },
   ],
 }
 
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