Roll src/third_party/ffmpeg/ dee930847..f34a90b21 (1 commit)

https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+log/dee930847568..f34a90b21090

$ git log dee930847..f34a90b21 --date=short --no-merges --format='%ad %ae %s'
2018-04-04 jcivelli Expose a method in cpu.h that will soon be used by Chromium

Created with:
  roll-dep src/third_party/ffmpeg

Bug: 823931
Change-Id: I5c98a3e98f5f5fb87e46b0d6da17a05a0a0f09a1
Reviewed-on: https://chromium-review.googlesource.com/998185
Commit-Queue: Jay Civelli <jcivelli@chromium.org>
Reviewed-by: Matthew Wolenetz <wolenetz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548631}

DEPS

@@ -471,7 +471,7 @@ deps = {
   },
 
   'src/third_party/ffmpeg':
-    Var('chromium_git') + '/chromium/third_party/ffmpeg.git' + '@' + 'dee930847568b85e25ef6db3e87a563057731e32',
+    Var('chromium_git') + '/chromium/third_party/ffmpeg.git' + '@' + 'f34a90b2109007f1dace5824e26108b19d11cb81',
 
   'src/third_party/flac':
     Var('chromium_git') + '/chromium/deps/flac.git' + '@' + '7d0f5b3a173ffe98db08057d1f52b7787569e0a6',