Import Cobalt 19.master.0.203780
Includes the following patches:
https://cobalt-review.googlesource.com/c/cobalt/+/5210
by errong.leng@samsung.com
https://cobalt-review.googlesource.com/c/cobalt/+/5270
by linus.wang@samsung.com
diff --git a/src/third_party/proxy_py/README.md b/src/third_party/proxy_py/README.md
new file mode 100644
index 0000000..d319276
--- /dev/null
+++ b/src/third_party/proxy_py/README.md
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+proxy.py
+========
+
+Lightweight HTTP, HTTPS and WebSockets Proxy Server in Python.
+
+Features
+--------
+
+- Distributed as a single file module
+- No external dependency other than standard Python library
+- Support for `http`, `https` and `websockets` request proxy
+- Optimize for large file uploads and downloads
+- IPv4 and IPv6 support
+- Basic authentication support
+
+Install
+-------
+
+To install proxy.py, simply:
+
+ $ pip install proxy.py
+
+Usage
+-----
+
+```
+$ proxy.py -h
+usage: proxy.py [-h] [--hostname HOSTNAME] [--port PORT] [--backlog BACKLOG]
+ [--basic-auth BASIC_AUTH]
+ [--server-recvbuf-size SERVER_RECVBUF_SIZE]
+ [--client-recvbuf-size CLIENT_RECVBUF_SIZE]
+ [--log-level LOG_LEVEL]
+
+proxy.py v0.3
+
+optional arguments:
+ -h, --help show this help message and exit
+ --hostname HOSTNAME Default: 127.0.0.1
+ --port PORT Default: 8899
+ --backlog BACKLOG Default: 100. Maximum number of pending connections to
+ proxy server
+ --basic-auth BASIC_AUTH
+ Default: No authentication. Specify colon separated
+ user:password to enable basic authentication.
+ --server-recvbuf-size SERVER_RECVBUF_SIZE
+ Default: 8 KB. Maximum amount of data received from
+ the server in a single recv() operation. Bump this
+ value for faster downloads at the expense of increased
+ RAM.
+ --client-recvbuf-size CLIENT_RECVBUF_SIZE
+ Default: 8 KB. Maximum amount of data received from
+ the client in a single recv() operation. Bump this
+ value for faster uploads at the expense of increased
+ RAM.
+ --log-level LOG_LEVEL
+ DEBUG, INFO (default), WARNING, ERROR, CRITICAL
+ --host_resolver Default: No host resolution. JSON hosts file used for
+ hostname IP resolution.
+
+Having difficulty using proxy.py? Report at:
+https://github.com/abhinavsingh/proxy.py/issues/new
+```
