Update from https://crrev.com/307664

build/build-ctags.sh

 #!/bin/bash
 
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 if [[ a"`ctags --version | head -1 | grep \"^Exuberant Ctags\"`" == "a" ]]; then
   cat <<EOF
   You must be using Exuberant Ctags, not just standard GNU ctags. If you are on
   Debian or a related flavor of Linux, you may want to try running
@@ skipping 18 matching lines @@
   if [[ a"$1" == "a--extra-excludes" ]]; then
     extraexcludes="--exclude=third_party --exclude=build --exclude=out"
     shift
   fi
 
   cd "$CHROME_SRC_DIR/$1" || fail $1
   # Redirect error messages so they aren't seen because they are almost always
   # errors about components that you just happen to have not built (NaCl, for
   # example).
   $(ctags_cmd "$extraexcludes") 2> /dev/null || fail $1
-  mv -f .tmp_tags .tags
+  mv -f .tmp_tags tags
 }
 
 # We always build the top level but leave all submodules as optional.
 build_dir --extra-excludes "" "top level"
 
 # Build any other directies that are listed on the command line.
 for dir in $@; do
   build_dir "$1"
   shift
 done