[chrome-devtools-frontend] Generate LASTCHANGE.blink in the uploader script

gce/uploader_iteration.sh

 #!/bin/bash
 # Copyright (c) 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.
 
 # This enables bash to treat any unhandled non-zero exit codes as "exceptions"
 set -e
 source $(dirname $0)/uploader_exit_codes.sh
 
 mark_step() {
@@ skipping 83 matching lines @@
     if [ -z "$DEVTOOLS_GYP" ]; then
         exit $EXIT_DEVTOOLS_GYP_FILE
     fi
     if [ -d ../devtools-frontend ]; then
         rm -rf ../devtools-frontend
     fi
     DEVTOOLS_DIR=$(dirname "$DEVTOOLS_GYP")
     GYP_GENERATORS=ninja ../gyp/gyp --toplevel-dir="$DEVTOOLS_DIR" --depth=../../../../devtools-frontend --generator-output=../../../../devtools-frontend "$DEVTOOLS_GYP" || exit $EXIT_GYP_DEVTOOLS
     popd
 
+    LASTCHANGE_DIR="$SOURCE_DIR/../build/util"
+    LASTCHANGE_FILE="$LASTCHANGE_DIR/LASTCHANGE.blink"
+    mkdir -p $LASTCHANGE_DIR
+    echo "LASTCHANGE=$REVISION" > $LASTCHANGE_FILE
+
     ninja -C devtools-frontend/out/Default devtools_frontend_resources || exit $EXIT_BUILD_FRONTEND
     ZIP_FILE_NAME=devtools_frontend.zip
     ZIP_FILE=$(pwd)/devtools-frontend/$ZIP_FILE_NAME
 
     pushd devtools-frontend/out/Default/resources/inspector
     # Create an AppCache manifest and patch devtools.html and / or inspector.html to point to it
     MANIFEST_FILE_NAME=$REVISION.manifest
     FALLBACK_ENTRIES=
     for DEVTOOLS_MAIN_HTML in devtools.html inspector.html; do
         if [ ! -f "$DEVTOOLS_MAIN_HTML" ]; then
@@ skipping 28 matching lines @@
 
     popd
 
     ZIP_SHA1=$(sha1sum $ZIP_FILE | awk '{print $1}')
     mv $ZIP_FILE "$ZIPS_DIR/$ZIP_SHA1.zip"
     echo "$ZIP_SHA1" > "$REVS_DIR/@$REVISION"
 
     # Comment out the line below for testing.
     gsutil -m cp -R $LOCAL_STORAGE_DIR/* $GS_PATH || exit $EXIT_CS_UPLOAD
 done