syncbase: Update many variable names for *Calls to call.

In a previous change I renamed many types from *Context to *Call.
In this change I am trying to also update as many variable names
as can easily be changed.  I have only altered variables whose
type was trivially determined.

MultiPart: 7/8

Change-Id: I41cefe48eb6d3bf0b449b794819359693c949165
5 files changed
tree: ca12c2935c1abc80249f8b64d5575dc2ad6e99ae
  1. v23/
  2. veyron/
  3. .gitignore