Revert "Roll libvpx: cc9c0c:8dc6ea"

DEPS

Index: DEPS
diff --git a/DEPS b/DEPS
index 1500d302f7f9c22ab42c18bc9f77df07a6bd57f4..d77bda38761b44be252070f64afc68b93ca7ebaf 100644
--- a/DEPS
+++ b/DEPS
@@ -40,7 +40,13 @@ vars = {
   'pdfium_git': 'https://pdfium.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'boringssl_git': 'https://boringssl.googlesource.com',
-  'libvpx_revision': '5da40ca3395cd09443f3d4a3f8b86e495a6df364',
+  # Three lines of non-changing comments so that
+  # the commit queue can handle CLs rolling libvpx
+  # and whatever else without interference from each other.
+  'libvpx_revision': 'cc9c0c5198e416173f480fb1f11e052f5c29a95b',
+  # Three lines of non-changing comments so that
+  # the commit queue can handle CLs rolling libvpx
+  # and whatever else without interference from each other.
   'sfntly_revision': '1bdaae8fc788a5ac8936d68bf24f37d977a13dac',
   'skia_revision': '36c57dfb4fe9bbaca436942d5eaa75b142ba251d',
   # Three lines of non-changing comments so that