Moved media mime type and codec checks to media/base/mime_util.*

media/media.gyp

Index: media/media.gyp
diff --git a/media/media.gyp b/media/media.gyp
index f5e797b61fe5ea05cc3abeccf93be9587a92859d..faf6fa470f9982626be8b9d32ba0ab513b28047e 100644
--- a/media/media.gyp
+++ b/media/media.gyp
@@ -330,6 +330,8 @@
         'base/media_switches.cc',
         'base/media_switches.h',
         'base/media_win.cc',
+        'base/mime_util.cc',
+        'base/mime_util.h',
         'base/moving_average.cc',
         'base/moving_average.h',
         'base/multi_channel_resampler.cc',
@@ -1036,7 +1038,7 @@
             'formats/mpeg/mpeg_audio_stream_parser_base.h',
           ],
         }],
-        ['target_arch=="ia32" or target_arch=="x64"', {
+        ['OS != "ios" and (target_arch=="ia32" or target_arch=="x64")', {

[ddorwin, 2015/05/14 18:09:59]

Why is this necessary if iOS doesn't use the media target?

[servolk, 2015/05/14 22:30:49]

Strictly speaking this is unnecessary for this CL, so I'll remove it for now.
But if we are interested in making media buildable on iOS, then we might still
consider this separate CL https://codereview.chromium.org/1140553004/

           'dependencies': [
             'media_asm',
             'media_sse2',
@@ -1137,6 +1139,7 @@
         'base/key_systems_unittest.cc',
         'base/mac/video_frame_mac_unittests.cc',
         'base/media_file_checker_unittest.cc',
+        'base/mime_util_unittest.cc',
         'base/moving_average_unittest.cc',
         'base/multi_channel_resampler_unittest.cc',
         'base/null_video_sink_unittest.cc',