Roll speex, flac, libvpx DEPS to get shim header changes.

DEPS

 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 
 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",
   "sourceforge_url": "http://%(repo)s.svn.sourceforge.net/svnroot/%(repo)s",
   "webkit_trunk": "http://svn.webkit.org/repository/webkit/trunk",
   "nacl_trunk": "http://src.chromium.org/native_client/trunk",
   "webkit_revision": "138767",
   "chromium_git": "https://chromium.googlesource.com",
   "chromiumos_git": "https://chromium.googlesource.com/chromiumos",
   "swig_revision": "69281",
   "nacl_revision": "10533",
   # After changing nacl_revision, run 'glient sync' and check native_client/DEPS
   # to update other nacl_*_revision's.
   "nacl_tools_revision": "10001",  # native_client/DEPS: tools_rev
   "gtm_revision": "578",
 
   "libjingle_revision": "257",
   "libphonenumber_revision": "456",
-  "libvpx_revision": "173187",
+  "libvpx_revision": "175207",
   "lss_revision": "17",
 
   # These two FFmpeg variables must be updated together.  One is used for SVN
   # checkouts and the other for Git checkouts.
   "ffmpeg_revision": "175176",
   "ffmpeg_hash": "0c981b3a572f9257e6178f5572e3f3cd47ac3025",
 
   "sfntly_revision": "134",
   "skia_revision": "7006",
   # Three lines of non-changing comments so that
@@ skipping 218 matching lines @@
     Var("ffmpeg_revision"),
 
   "src/third_party/libjingle/source":
     (Var("googlecode_url") % "libjingle") + "/trunk@" +
     Var("libjingle_revision"),
 
   "src/third_party/libsrtp":
     "/trunk/deps/third_party/libsrtp@174628",
 
   "src/third_party/speex":
-    "/trunk/deps/third_party/speex@160092",
+    "/trunk/deps/third_party/speex@175205",
 
   "src/third_party/yasm/source/patched-yasm":
     "/trunk/deps/third_party/yasm/patched-yasm@167605",
 
   "src/third_party/libjpeg_turbo":
     "/trunk/deps/third_party/libjpeg_turbo@149334",
 
   "src/third_party/flac":
-    "/trunk/deps/third_party/flac@174038",
+    "/trunk/deps/third_party/flac@175206",
 
   "src/third_party/pyftpdlib/src":
     (Var("googlecode_url") % "pyftpdlib") + "/trunk@977",
 
   "src/third_party/scons-2.0.1":
     Var("nacl_trunk") + "/src/third_party/scons-2.0.1@" +
         Var("nacl_tools_revision"),
 
   "src/third_party/webrtc":
     (Var("googlecode_url") % "webrtc") + "/stable/webrtc@" + Var("webrtc_revision"),
@@ skipping 381 matching lines @@
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": ".",
     "action": ["python", "src/build/gyp_chromium"],
   },
   {
     # Check for landmines (reasons to clobber the build).
     "pattern": ".",
     "action": ["python", "src/build/landmines.py"],
   },
 ]