Updated from global requirements

Change-Id: I4f26d3a8790c799e5c1f7f81031406e0c57545f9

Change-Id: Ica7315effe308bd739e90f885849fac27a3c542b

Change-Id: I2cc2769b89bd040064408faea30c448350fa5f00
Add AssertRequestHeaderEqual test helper and make use of it

This will be a fairly common pattern and so should be a helper of its
own.

Change-Id: Ic06add6dfe40c7d3ab88dfdd99a9087fdebd9b67
Merge "Updated from global requirements"