SF: Rename HwcConfigIndexType to DisplayModeId

Bug: 159590486
Bug: 176148651
Test: atest libsurfaceflinger_unittest

Change-Id: Ie177b213bb7a8ab9f67a51d2b5cf27d8fd97b780
diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
index d0ba8fe..4d36f0c 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
@@ -96,7 +96,7 @@
     MOCK_CONST_METHOD1(isVsyncPeriodSwitchSupported, bool(PhysicalDisplayId));
     MOCK_CONST_METHOD1(getDisplayVsyncPeriod, nsecs_t(PhysicalDisplayId));
     MOCK_METHOD4(setActiveModeWithConstraints,
-                 status_t(PhysicalDisplayId, HwcConfigIndexType,
+                 status_t(PhysicalDisplayId, DisplayModeId,
                           const hal::VsyncPeriodChangeConstraints&,
                           hal::VsyncPeriodChangeTimeline*));
     MOCK_METHOD2(setAutoLowLatencyMode, status_t(PhysicalDisplayId, bool));