unity-scopes-api test timeout on xenial and yakkety

xenial build log (Qt 5.5):

https://launchpadlibrarian.net/276302497/buildlog_ubuntu-xenial-amd64.unity-scopes-api_1.0.6+16.10.20160617-0ubuntu2~~testrebuild1~~testrebuild1~1_BUILDING.txt.gz

yakkety build log (Qt 5.6):

https://launchpadlibrarian.net/276201470/buildlog_ubuntu-yakkety-amd64.unity-scopes-api_1.0.6+16.10.20160617-0ubuntu2~~testrebuild1~~testrebuild1~1_BUILDING.txt.gz

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59: Test command: /«BUILDDIR»/unity-scopes-api-1.0.6+16.10.20160617/obj-x86_64-linux-gnu/test/gtest/scopes/OnlineAccountClient/OnlineAccountClient_test
59: Test timeout computed to be: 1500
59: DBus daemon: unix:abstract=/tmp/dbus-i5Uxxs7Nq3,guid=e4a1f6d25b669cb964dce60057a03fba
59: DBusMock: Started with PID: 16987
59: [==========] Running 5 tests from 2 test cases.
59: [----------] Global test environment set-up.
59: [----------] 4 tests from OnlineAccountClientTest
59: [ RUN ] OnlineAccountClientTest.register_account_login_result
59: [ OK ] OnlineAccountClientTest.register_account_login_result (73 ms)
59: [ RUN ] OnlineAccountClientTest.register_account_login_widget
59: [ OK ] OnlineAccountClientTest.register_account_login_widget (21 ms)
59: [ RUN ] OnlineAccountClientTest.refresh_services_main_loop
59: variant_to_gvariant(): unsupported type {}
59: variant_to_gvariant(): unsupported type {}
 59/111 Test #59: OnlineAccountClient .................................***Timeout 1500.00 sec
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