GitLab

Removed test-only methods from CastRunner, WebContentRunner and
CastComponent that were previously used in
cast_runner_integration_tests.

1. Removed CastRunner and WebContentRunner constructors that take
web.Context. Now context is always created in WebContentRunner.
2. Removed test-only methods.
3. Updated TestComponentContext to allow initialization with all
services cloned from /svc.

The tests now inject a script into the frame in order to test
functionality that was previously tested with the test-only methods.

Bug: 1062351
Change-Id: I169651b68e0e9344d3450371db1485d9046c5c16
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2135154
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#757571}