Roll CLD2 to r166 to address Windows compilation failures.

BUG=403222
TBR=toyoshim@chromium.org

Review URL: https://codereview.chromium.org/465333002

Cr-Commit-Position: refs/heads/master@{#289295}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289295 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -308,7 +308,7 @@ deps = {
     "/trunk/deps/third_party/mesa@265279",
 
   "src/third_party/cld_2/src":
-    (Var("googlecode_url") % "cld2") + "/trunk@165",
+    (Var("googlecode_url") % "cld2") + "/trunk@166",
 
   "src/chrome/browser/resources/pdf/html_office":
      Var("chromium_git") +