Update to version 1.2.0 of external frameworks.

script/update-external-binaries.py

@@ -8,7 +8,7 @@ from lib.config import get_target_arch
 from lib.util import safe_mkdir, rm_rf, extract_zip, tempdir, download
 
 
-VERSION = 'v1.1.0'
+VERSION = 'v1.2.0'
 SOURCE_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
 FRAMEWORKS_URL = 'http://github.com/electron/electron-frameworks/releases' \
                  '/download/' + VERSION