Fix AppListClientImplBrowserTest.OpenSearchResult on branded builds

The test is looking for an app called "Chromium", but on Google-branded
builds the app is called "Chrome".

Bug: 977737
Test: AppListClientImplBrowserTest.OpenSearchResult
Change-Id: I5666ae8f97c8b41e1119ba3f6150020b109c969c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1674347
Reviewed-by: Jenny Zhang <jennyz@chromium.org>
Commit-Queue: Vladislav Kaznacheev <kaznacheev@chromium.org>
Auto-Submit: Vladislav Kaznacheev <kaznacheev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672241}
2 files changed