Remove wget usage from install-sysroot.py

build/linux/sysroot_scripts/install-sysroot.py

Index: build/linux/sysroot_scripts/install-sysroot.py
diff --git a/build/linux/sysroot_scripts/install-sysroot.py b/build/linux/sysroot_scripts/install-sysroot.py
index d1e392f3be7b5477791670aee4c6486da0e8dd05..109d5532b518bcbdfa96d44de4b395bcf6ba1898 100755
--- a/build/linux/sysroot_scripts/install-sysroot.py
+++ b/build/linux/sysroot_scripts/install-sysroot.py
@@ -25,6 +25,7 @@ import re
 import shutil
 import subprocess
 import sys
+import urllib
 
 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.dirname(os.path.dirname(SCRIPT_DIR)))
@@ -245,8 +246,14 @@ def InstallSysroot(target_platform, target_arch):
   print 'Downloading %s' % url
   sys.stdout.flush()
   sys.stderr.flush()
-  subprocess.check_call(
-      ['wget', '--quiet', '-t', '3', '-O', tarball, url])
+  for _ in range(3):
+    try:
+      urllib.urlretrieve(url, tarball)
+      break
+    except:
+      pass
+  else:
+    raise Error('Failed to download %s' % url)
   sha1sum = GetSha1(tarball)
   if sha1sum != tarball_sha1sum:
     raise Error('Tarball sha1sum is wrong.'