base_unittests: fix invalid brace-initializer in StackSamplerImplTest::WalkStack_AuxThenNative

Brace initializer used for populating one of the FakeTestUnwinder instances in
WalkStack_AuxThenNative was adding an extra nesting level that was not really
needed. In GCC, this would actually make method resolution fail.

Bug: 819294
Change-Id: I711aaaa7988c421dae2221e7cafbba22ecf8ab5d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1658014
Reviewed-by: Mike Wittman <wittman@chromium.org>
Commit-Queue: José Dapena Paz <jose.dapena@lge.com>
Cr-Commit-Position: refs/heads/master@{#668935}
1 file changed