UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36

Example URL:
Not applicable

Steps to reproduce the problem:
1. Uploading a large file to Google Drive.
2. Recording upload speeds.

What is the expected behavior?
Which is as fast as IE 11/FF 44.

What went wrong?
The speed of uploading files with IE 11/FF 44 is up to 10MBytes/s via a 100Mbps academic network. Which is only less than 3MBytes/s with Chrome 48.
I think the const kBufferSize may too small in net/url_request/url_fetcher_core.cc:37.

Did this work before? No 

Chrome version: 48.0.2564.116  Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 20.0 r0

I am using an Intel i5-760 CPU with 16GB RAM.
Here is related discussion: https://productforums.google.com/forum/#!topic/drive/XydyaKjzX-Y