tree 55957caf9bc91200b00059a51c690ac123ad3750
parent 5585001e5d3f867753752a8569a4f778636c583d
author jbauch <jbauch@webrtc.org> 1458479743 -0700
committer Commit bot <commit-bot@chromium.org> 1458479748 +0000

Reland Use CopyOnWriteBuffer instead of Buffer to avoid unnecessary copies.

This CL removes copy and assign support from Buffer and changes various
parameters from Buffer to CopyOnWriteBuffer so they can be passed along
and copied without actually copying the underlying data.

With this changed some parameters to be "const" and fixed an issue when
creating a CopyOnWriteBuffer with empty data.

BUG=webrtc:5155

Review URL: https://codereview.webrtc.org/1823503002

Cr-Commit-Position: refs/heads/master@{#12062}