mtreplay: Support the new mouse wheel gesture type

This is required to compile mtreplay with https://crrev.com/c/2301084.

BUG=chromium:1077644
TEST=run the touch tests

Cq-Depend: chromium:2301084
Change-Id: Iaf196d3ce96e1a21fc7ad383eb2da128d34f6bd3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/mttools/+/2315477
Tested-by: Harry Cutts <hcutts@chromium.org>
Commit-Queue: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
diff --git a/mtreplay/src/replay_device.cc b/mtreplay/src/replay_device.cc
index b053435..e550707 100644
--- a/mtreplay/src/replay_device.cc
+++ b/mtreplay/src/replay_device.cc
@@ -154,6 +154,13 @@
               static_cast<int>(gesture->details.scroll.dx),
               static_cast<int>(gesture->details.scroll.dy));
       break;
+    case kGestureTypeMouseWheel:
+      fprintf(fp, "Mouse Wheel (%d, %d) [%d, %d]",
+              static_cast<int>(gesture->details.wheel.dx),
+              static_cast<int>(gesture->details.wheel.dy),
+              gesture->details.wheel.tick_120ths_dx,
+              gesture->details.wheel.tick_120ths_dy);
+      break;
     case kGestureTypeButtonsChange:
       fprintf(fp, "Buttons Change up=%d, down=%d",
               gesture->details.buttons.up,