Enable virtual tests in Network Service LayoutTests

These tests were blanket disabled when the number of failing LayoutTests
with the Network Service enabled was very high. Now that the number of
failures is more under control we should enable them.

The mojo-loading virtual tests are explicitly skipped since enabling the
Network Service also enables Mojo Loading and so the test coverage is
redundant.

[email protected]
NOTRY=true

Bug: 729849
Change-Id: I33abad9d8a7cfe6cf498985d786dcc4294ae5229
Reviewed-on: https://chromium-review.googlesource.com/724081
Reviewed-by: Reilly Grant <[email protected]>
Commit-Queue: Reilly Grant <[email protected]>
Cr-Commit-Position: refs/heads/master@{#509586}
1 file changed