Add a unit test for Motion JPEG frames.

DEPS

 vars = {
   # Use this googlecode_url variable only if there is an internal mirror for it.
   # If you do not know, use the full path while defining your new deps entry.
   "googlecode_url": "http://%s.googlecode.com/svn",
   "webkit_trunk": "http://svn.webkit.org/repository/webkit/trunk",
   "nacl_trunk": "http://src.chromium.org/native_client/trunk",
   "webkit_revision": "86640",
   "chromium_git": "http://git.chromium.org/git",
   "swig_revision": "69281",
   # These hashes need to be updated when nacl_revision is changed.
@@ skipping 195 matching lines @@
     (Var("googlecode_url") % "libjingle") + "/branches/chrome-sandbox@" +
     Var("libjingle_revision"),
 
   "src/third_party/speex":
     "/trunk/deps/third_party/speex@83190",
 
   "src/third_party/yasm/source/patched-yasm":
     "/trunk/deps/third_party/yasm/patched-yasm@73761",
 
   "src/third_party/libjpeg_turbo":
-    "/trunk/deps/third_party/libjpeg_turbo@83675",
+    "/trunk/deps/third_party/libjpeg_turbo@85600",
 
   "src/third_party/flac":
     "/trunk/deps/third_party/flac@75901",
 
   # Needed to support nacl browser test jig.
   "src/third_party/pylib":
     Var("nacl_trunk") + "/src/third_party/pylib@" + Var("nacl_tools_revision"),
   "src/third_party/scons-2.0.1":
     Var("nacl_trunk") + "/src/third_party/scons-2.0.1@" +
         Var("nacl_tools_revision"),
@@ skipping 132 matching lines @@
   {
     # This downloads binaries for Native Client's integrated runtime (IRT)
     # library, which is built as NaCl untrusted code.
     "pattern": ".",
     "action": ["python", "src/build/download_nacl_irt.py",
                "--nacl_revision", Var("nacl_revision"),
                "--file_hash", "x86_32", Var("nacl_irt_hash_x86_32"),
                "--file_hash", "x86_64", Var("nacl_irt_hash_x86_64")],
   },
 ]