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This cl get SingleClientTypedUrlsSyncTest works on Android. Clank
doesn't support multiple profiles, and all sync tests need multiple
profiles. For single client test on desktop, it need at least 2 profiles:
1 The default browser and profile, started by browser test;
2 The browser and profile under test, created by AddBrowser();
3 If verifier is enabled, create another verifier profile.
For Android, we can't do that. This cl does:
* Only support single client test on Android.
* For 1 and 2, we only use the default browser and profile as SUT.
* For 3, we don't support it for Android.

android_sync_integration_tests.
$ autoninja -C out/Clank android_sync_integration_tests
$ out/Clank/android_sync_integration_tests

TEST: Locally tested on a Next 5X device for target
BUG: 1117345
Change-Id: I0167164334fc63be5cc278c145daf130ba16912e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2387404Reviewed-by: Marc Treib <treib@chromium.org>
Commit-Queue: Sven Zheng <svenzheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#803930}