[Swarming] Bundle jsfunfuzz.

This downloads a patched version of jsfunfuzz from google
storage (google internal bucket) as a hook on demand.

Similar to the gcmole approach from
https://codereview.chromium.org/1703533002/

BUG=chromium:535160
LOG=n

Review URL: https://codereview.chromium.org/1706963005

Cr-Commit-Position: refs/heads/master@{#34106}

.gitignore

@@ -68,8 +68,8 @@ shell_g
 /tools/clang
 /tools/gcmole/gcmole-tools
 /tools/gcmole/gcmole-tools.tar.gz
-/tools/jsfunfuzz
-/tools/jsfunfuzz.zip
+/tools/jsfunfuzz/jsfunfuzz
+/tools/jsfunfuzz/jsfunfuzz.tar.gz
 /tools/luci-go/linux64/isolate
 /tools/luci-go/mac64/isolate
 /tools/luci-go/win64/isolate.exe

DEPS

@@ -110,6 +110,14 @@ hooks = [
         'v8/tools/gcmole/download_gcmole_tools.py',
     ],
   },
+  {
+    'name': 'jsfunfuzz',
+    'pattern': '.',
+    'action': [
+        'python',
+        'v8/tools/jsfunfuzz/download_jsfunfuzz.py',
+    ],
+  },
   # Pull luci-go binaries (isolate, swarming) using checked-in hashes.
   {
     'name': 'luci-go_win',

tools/fuzz-harness.sh

@@ -36,6 +36,7 @@ JSFUNFUZZ_URL="https://bugzilla.mozilla.org/attachment.cgi?id=310631"
 JSFUNFUZZ_MD5="d0e497201c5cd7bffbb1cdc1574f4e32"
 
 v8_root=$(readlink -f $(dirname $BASH_SOURCE)/../)
+jsfunfuzz_dir="$v8_root/tools/jsfunfuzz"
 
 if [ -n "$1" ]; then
   d8="${v8_root}/$1"
@@ -48,24 +49,28 @@ if [ ! -f "$d8" ]; then
   exit 1
 fi
 
-jsfunfuzz_file="$v8_root/tools/jsfunfuzz.zip"
-if [ ! -f "$jsfunfuzz_file" ]; then
-  echo "Downloading $jsfunfuzz_file ..."
-  wget -q -O "$jsfunfuzz_file" $JSFUNFUZZ_URL || exit 1
-fi
+# Deprecated download method. A prepatched archive is downloaded as a hook
+# if jsfunfuzz=1 is specified as a gyp flag. Requires google.com authentication
+# for google storage.
+if [ "$2" == "--download" ]; then
 
-jsfunfuzz_sum=$(md5sum "$jsfunfuzz_file" | awk '{ print $1 }')
-if [ $jsfunfuzz_sum != $JSFUNFUZZ_MD5 ]; then
-  echo "Failed to verify checksum!"
-  exit 1
-fi
+  jsfunfuzz_file="$v8_root/tools/jsfunfuzz.zip"
+  if [ ! -f "$jsfunfuzz_file" ]; then
+    echo "Downloading $jsfunfuzz_file ..."
+    wget -q -O "$jsfunfuzz_file" $JSFUNFUZZ_URL || exit 1
+  fi
 
-jsfunfuzz_dir="$v8_root/tools/jsfunfuzz"
-if [ ! -d "$jsfunfuzz_dir" ]; then
-  echo "Unpacking into $jsfunfuzz_dir ..."
-  unzip "$jsfunfuzz_file" -d "$jsfunfuzz_dir" || exit 1
-  echo "Patching runner ..."
-  cat << EOF | patch -s -p0 -d "$v8_root"
+  jsfunfuzz_sum=$(md5sum "$jsfunfuzz_file" | awk '{ print $1 }')
+  if [ $jsfunfuzz_sum != $JSFUNFUZZ_MD5 ]; then
+    echo "Failed to verify checksum!"
+    exit 1
+  fi
+
+  if [ ! -d "$jsfunfuzz_dir" ]; then
+    echo "Unpacking into $jsfunfuzz_dir ..."
+    unzip "$jsfunfuzz_file" -d "$jsfunfuzz_dir" || exit 1
+    echo "Patching runner ..."
+    cat << EOF | patch -s -p0 -d "$v8_root"
 --- tools/jsfunfuzz/jsfunfuzz/multi_timed_run.py~
 +++ tools/jsfunfuzz/jsfunfuzz/multi_timed_run.py
 @@ -125,7 +125,7 @@
@@ -78,6 +83,8 @@ if [ ! -d "$jsfunfuzz_dir" ]; then
          logfilename = "w%d" % iteration
          one_timed_run(logfilename)
 EOF
+  fi
+
 fi
 
 flags='--debug-code --expose-gc --verify-gc'

tools/jsfunfuzz/download_jsfunfuzz.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+# Copyright 2016 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import re
+import subprocess
+
+FUZZ_PATH = os.path.dirname(os.path.abspath(__file__))
+SHA1_PATH = os.path.join(FUZZ_PATH, 'jsfunfuzz.tar.gz.sha1')
+
+if re.search(r'\bjsfunfuzz=1', os.environ.get('GYP_DEFINES', '')):
+  subprocess.check_call([
+    'download_from_google_storage',
+    '-b', 'chrome-v8-jsfunfuzz',
+    '-u', '--no_resume',
+    '-s', SHA1_PATH,
+    '--platform=linux*'
+  ])
+else:
+  print 'Skipping jsfunfuzz download as jsfunfuzz is not set in gyp flags.'

tools/jsfunfuzz/jsfunfuzz.tar.gz.sha1

@@ -0,0 +1 @@
+d92e66273ea2a0da89456a977edd0224a8e837e9