tree d6289f6cdb2a1441c471f97e9b1ffdd0a9eecd98
parent f6e5149bbf400b205515e9e1713b0c9e47919b73
author Wyatt Allen <wyatta@google.com> 1467055161 -0700
committer Wyatt Allen <wyatta@google.com> 1467071059 -0700

Separates diff processing from diff building

Moves the diff-processing functionality of the gr-diff-builder component
into a new gr-diff-processor component which exposes a promise-based
interface. This is step one of creating an asynchronous (non-blocking)
diff rendering system.

As much as possible, this change is a transfer of code (with tests) from
one component to another, making it easier to verify that functionality
has not changed. Cleanup of the code, and refactoring it into a
more-testable form will come with later changes.

Feature: Issue 3916
Change-Id: I875b03b20bf953b128cbe3c5001ba1f8eba12c61