Chromium side changes to use PP_CompletionCallback as the Flush callback....

DEPS

 vars = {
   "webkit_trunk":
   "http://svn.webkit.org/repository/webkit/trunk",
   "webkit_revision": "61756",
   "ffmpeg_revision": "49485",
   "skia_revision": "582",
   "chromium_git": "http://src.chromium.org/git",
   "swig_revision": "40423",
   "nacl_revision": "2555",
   "libvpx_revision": "47941",
@@ skipping 137 matching lines @@
     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":
-    "http://ppapi.googlecode.com/svn/trunk@73",
+    "http://ppapi.googlecode.com/svn/trunk@77",
 
   "src/third_party/libjingle/source":
     "http://libjingle.googlecode.com/svn/branches/nextsnap@" +
     Var("libjingle_revision"),
 }
 
 
 deps_os = {
   "win": {
     "src/chrome/tools/test/reference_build/chrome":
@@ skipping 120 matching lines @@
   },
   {
     # Workaround XCode dependecies problem.
     # TODO(bradnelson): remove this when fixed.
     "pattern": ".",
     "action": ["python",
                "src/build/mac/clobber_generated_headers.py"],
   },
 ]