Update dom-distiller script for new dist repo

Dom-distiller is moving to use gerrit and the dist-roll script
references need to be updated. The github repos still exist and
are mirrored versions of ones hosted by google.

BUG=749769

Change-Id: I99404c9097bb22f3cca5f233d2d1e8fb658d9375
Reviewed-on: https://chromium-review.googlesource.com/687991
Reviewed-by: Tommy Nyquist <nyquist@chromium.org>
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505149}

third_party/dom_distiller_js/update_domdistiller_js.sh

@@ -21,12 +21,13 @@
   changes=$tmpdir/domdistiller.changes
   bugs=$tmpdir/domdistiller.bugs
   curr_gitsha=$(grep 'Version:' $readme_chromium | awk '{print $2}')
+  repo_host=https://chromium.googlesource.com/chromium
 
   rm -rf $tmpdir
   mkdir $tmpdir
   pushd $tmpdir
 
-  git clone https://github.com/chromium/dom-distiller.git
+  git clone $repo_host/dom-distiller
   pushd dom-distiller
 
   # The new git SHA1 is HEAD or the first command line parameter.
@@ -55,7 +56,7 @@
   ant package
   popd # dom-distiller
 
-  git clone https://github.com/chromium/dom-distiller-dist.git $tmpdir/dom-distiller-dist
+  git clone $repo_host/dom-distiller/dist $tmpdir/dom-distiller-dist
   rm -rf $tmpdir/dom-distiller-dist/*
   pushd dom-distiller-dist
   cp -r $tmpdir/dom-distiller/out/package/* .
@@ -71,7 +72,7 @@
   popd # dom-distiller-dist
 
   popd # tmpdir
-  curr_dist_gitsha=$(grep -e "/external\/github.com\/chromium\/dom-distiller-dist.git" $src_path/DEPS | sed -e "s/.*'\([A-Za-z0-9]\{40\}\)'.*/\1/g")
+  curr_dist_gitsha=$(grep -e "/chromium\/dom-distiller\/dist.git" $src_path/DEPS | sed -e "s/.*'\([A-Za-z0-9]\{40\}\)'.*/\1/g")
   if [[ "${new_dist_gitsha}" == "${curr_dist_gitsha}" ]]; then
     echo "The roll does not include any changes to the dist package. Exiting."
     rm -rf $tmpdir
@@ -80,7 +81,7 @@
 
   cp $tmpdir/dom-distiller/LICENSE $dom_distiller_js_path/
   sed -i "s/Version: [0-9a-f]*/Version: ${new_gitsha}/" $readme_chromium
-  sed -i -e "s/\('\/external\/github.com\/chromium\/dom-distiller-dist.git' + '@' + '\)\([0-9a-f]\+\)'/\1${new_dist_gitsha}'/" $src_path/DEPS
+  sed -i -e "s/\('\/chromium\/dom-distiller\/dist.git' + '@' + '\)\([0-9a-f]\+\)'/\1${new_dist_gitsha}'/" $src_path/DEPS
 
   gen_message () {
     echo "Roll DOM Distiller JavaScript distribution package"