Need to move slow unit tests into gtest-slow

Any test that is greater than 400-500ms is a slow test. This means they need to be moved over to gtest-slow.

[ OK ] TestDeviceLauncherSection.NoDuplicates (502 ms)
[ OK ] TestKeyboardUtil.MoveKeySymbols (2433 ms)
[ OK ] TestLauncher.TestQuirksDuringDnd (1019 ms)
[ OK ] TestLauncher.DragLauncherIconCancelRestoresIconOrder (1016 ms)
[ OK ] TestLauncher.DragLauncherIconSavesIconOrderIfPositionHasChanged (1019 ms)
[ OK ] TestLauncher.DragLauncherIconSavesIconOrderIfPositionHasNotChanged (1016 ms)
[ OK ] TestLauncher.UrgentIconWiggleTimerTimeout (2015 ms)
[ OK ] TestPanelStyle.TestChangedSignal (1000 ms)
[ OK ] TestScopeView.TestCategoryExpansion_OneCategory_EmptySearchString (517 ms)
[ OK ] TestScopeView.TestCategoryExpansion_OneCategory_FilledSearchString (517 ms)
[ OK ] TestScopeView.TestCategoryExpansion_TwoCategory_EmptySearchString (517 ms)
[ OK ] TestScopeView.TestCategoryExpansion_TwoCategory_FilledSearchString (518 ms)
[ OK ] TestScopeView.TestCategoryExpansion_ThreeCategory_EmptySearchString (514 ms)
[ OK ] TestScopeView.TestCategoryExpansion_ThreeCategory_FilledSearchString (515 ms)
[ OK ] TestScopeView.TestCategoryExpansion_TwoCategory_OnResultAdded_EmptySearchString (1025 ms)
[ OK ] TestScopeView.TestCategoryExpansion_TwoCategory_OnResultAdded_FilledSearchString (1026 ms)
[ OK ] TestScopeView.TestCategoryExpansion_ThreeCategory_OnResultAdded_EmptySearchString (1523 ms)
[ OK ] TestScopeView.TestCategoryExpansion_ThreeCategory_OnResultAdded_FilledSearchString (1517 ms)
[ OK ] TestShortcutController.WindowIsRaisedOnShow (1002 ms)
[ OK ] TestXdndManager.SignalDndStartedAndFinished (2508 ms)
==========] 1167 tests from 91 test cases ran. (38352 ms total)
[ PASSED ] 1167 tests.

Moving just these tests will speed up our gtest-test by ~20 seconds or 20,000ms...which is huge! For only moving 20 tests compared to our 1167 tests we currently have in gtest-test.