Revert 48697 - ffmpeg roll to deps version that contains gyp and source...

DEPS

 vars = {
   "webkit_trunk":
   "http://svn.webkit.org/repository/webkit/trunk",
   "webkit_revision": "60528",
-  "ffmpeg_revision": "48686",
+  "ffmpeg_revision": "47712",
   "skia_revision": "562",
   "chromium_git": "http://src.chromium.org/git",
   "swig_revision": "40423",
   "nacl_revision": "2407",
   "libvpx_revision": "47941",
 }
 
 deps = {
   "src/breakpad/src":
     "http://google-breakpad.googlecode.com/svn/trunk/src@604",
@@ skipping 116 matching lines @@
   "src/chrome/test/data/layout_tests/LayoutTests/storage/domstorage":
     Var("webkit_trunk") + "/LayoutTests/storage/domstorage@" +
     Var("webkit_revision"),
   "src/chrome/test/data/layout_tests/LayoutTests/websocket/tests/workers":
     Var("webkit_trunk") + "/LayoutTests/websocket/tests/workers@" +
     Var("webkit_revision"),
 
   "src/third_party/swig/Lib":
     "/trunk/deps/third_party/swig/Lib@" + Var("swig_revision"),
 
-  "src/third_party/ffmpeg":
-    "/trunk/deps/third_party/ffmpeg/source@" +
+  "src/third_party/ffmpeg/source/patched-ffmpeg-mt":
+    "/trunk/deps/third_party/ffmpeg/patched-ffmpeg-mt@" +
     Var("ffmpeg_revision"),
 
   "src/third_party/libvpx/include":
     "/trunk/deps/third_party/libvpx/include@" +
     Var("libvpx_revision"),
   "src/third_party/libvpx/lib":
     "/trunk/deps/third_party/libvpx/lib@" +
     Var("libvpx_revision"),
 
   "src/third_party/ppapi":
@@ skipping 120 matching lines @@
   },
   {
     # Workaround XCode dependecies problem.
     # TODO(bradnelson): remove this when fixed.
     "pattern": ".",
     "action": ["python",
                "src/build/mac/clobber_generated_headers.py"],
   },
 ]