Fix IntegrationServiceImplTest.
The test was using an undefined variable and caused failure in Firefox.
@bug W-1779623@
@rev gtorres@
Merge branch '186/patch' of git.soma.salesforce.com:aura/aura into 186Patch
Merge branch '186/patch' of git.soma.salesforce.com:aura/aura into 186Patch
Merge branch '186/patch' of git.soma.salesforce.com:aura/aura into 186Patch
Merging origin/ravi/patch-pending-W-1778032 into 186/patch