diff --git a/gfx/layers/apz/test/gtest/APZTestCommon.h b/gfx/layers/apz/test/gtest/APZTestCommon.h
index 201c27467c3f..6e210e24b585 100644
--- a/gfx/layers/apz/test/gtest/APZTestCommon.h
+++ b/gfx/layers/apz/test/gtest/APZTestCommon.h
@@ -22,6 +22,7 @@
 #include "mozilla/layers/APZCTreeManager.h"
 #include "mozilla/layers/LayerMetricsWrapper.h"
 #include "mozilla/layers/APZThreadUtils.h"
+#include "mozilla/TypedEnumBits.h"
 #include "mozilla/UniquePtr.h"
 #include "apz/src/AsyncPanZoomController.h"
 #include "apz/src/HitTestingTreeNode.h"
@@ -288,6 +289,11 @@ public:
     mcc = new NiceMock<MockContentControllerDelayed>();
   }
 
+  enum class PanOptions {
+    None = 0,
+    KeepFingerDown = 0x1,
+  };
+
   template<class InputReceiver>
   void Tap(const RefPtr<InputReceiver>& aTarget, const ScreenIntPoint& aPoint,
            TimeDuration aTapLength,
@@ -302,7 +308,7 @@ public:
   void Pan(const RefPtr<InputReceiver>& aTarget,
            const ScreenIntPoint& aTouchStart,
            const ScreenIntPoint& aTouchEnd,
-           bool aKeepFingerDown = false,
+           PanOptions aOptions = PanOptions::None,
            nsTArray<uint32_t>* aAllowedTouchBehaviors = nullptr,
            nsEventStatus (*aOutEventStatuses)[4] = nullptr,
            uint64_t* aOutInputBlockId = nullptr);
@@ -314,7 +320,7 @@ public:
   */
   template<class InputReceiver>
   void Pan(const RefPtr<InputReceiver>& aTarget, int aTouchStartY,
-           int aTouchEndY, bool aKeepFingerDown = false,
+           int aTouchEndY, PanOptions aOptions = PanOptions::None,
            nsTArray<uint32_t>* aAllowedTouchBehaviors = nullptr,
            nsEventStatus (*aOutEventStatuses)[4] = nullptr,
            uint64_t* aOutInputBlockId = nullptr);
@@ -350,6 +356,8 @@ protected:
   RefPtr<MockContentControllerDelayed> mcc;
 };
 
+MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(APZCTesterBase::PanOptions)
+
 template<class InputReceiver>
 void
 APZCTesterBase::Tap(const RefPtr<InputReceiver>& aTarget,
@@ -399,7 +407,7 @@ void
 APZCTesterBase::Pan(const RefPtr<InputReceiver>& aTarget,
                     const ScreenIntPoint& aTouchStart,
                     const ScreenIntPoint& aTouchEnd,
-                    bool aKeepFingerDown,
+                    PanOptions aOptions,
                     nsTArray<uint32_t>* aAllowedTouchBehaviors,
                     nsEventStatus (*aOutEventStatuses)[4],
                     uint64_t* aOutInputBlockId)
@@ -455,7 +463,7 @@ APZCTesterBase::Pan(const RefPtr<InputReceiver>& aTarget,
 
   mcc->AdvanceBy(TIME_BETWEEN_TOUCH_EVENT);
 
-  if (!aKeepFingerDown) {
+  if (!(aOptions & PanOptions::KeepFingerDown)) {
     status = TouchUp(aTarget, aTouchEnd, mcc->Time());
   } else {
     status = nsEventStatus_eIgnore;
@@ -472,13 +480,13 @@ APZCTesterBase::Pan(const RefPtr<InputReceiver>& aTarget,
 template<class InputReceiver>
 void
 APZCTesterBase::Pan(const RefPtr<InputReceiver>& aTarget,
-                    int aTouchStartY, int aTouchEndY, bool aKeepFingerDown,
+                    int aTouchStartY, int aTouchEndY, PanOptions aOptions,
                     nsTArray<uint32_t>* aAllowedTouchBehaviors,
                     nsEventStatus (*aOutEventStatuses)[4],
                     uint64_t* aOutInputBlockId)
 {
   Pan(aTarget, ScreenIntPoint(10, aTouchStartY), ScreenIntPoint(10, aTouchEndY),
-      aKeepFingerDown, aAllowedTouchBehaviors, aOutEventStatuses, aOutInputBlockId);
+      aOptions, aAllowedTouchBehaviors, aOutEventStatuses, aOutInputBlockId);
 }
 
 template<class InputReceiver>
@@ -491,7 +499,7 @@ APZCTesterBase::PanAndCheckStatus(const RefPtr<InputReceiver>& aTarget,
                                   uint64_t* aOutInputBlockId)
 {
   nsEventStatus statuses[4]; // down, move, move, up
-  Pan(aTarget, aTouchStartY, aTouchEndY, false, aAllowedTouchBehaviors, &statuses, aOutInputBlockId);
+  Pan(aTarget, aTouchStartY, aTouchEndY, PanOptions::None, aAllowedTouchBehaviors, &statuses, aOutInputBlockId);
 
   EXPECT_EQ(nsEventStatus_eConsumeDoDefault, statuses[0]);
 
@@ -510,7 +518,7 @@ APZCTesterBase::ApzcPanNoFling(const RefPtr<TestAsyncPanZoomController>& aApzc,
                                int aTouchStartY, int aTouchEndY,
                                uint64_t* aOutInputBlockId)
 {
-  Pan(aApzc, aTouchStartY, aTouchEndY, false, nullptr, nullptr, aOutInputBlockId);
+  Pan(aApzc, aTouchStartY, aTouchEndY, PanOptions::None, nullptr, nullptr, aOutInputBlockId);
   aApzc->CancelAnimation();
 }
 
diff --git a/gfx/layers/apz/test/gtest/TestBasic.cpp b/gfx/layers/apz/test/gtest/TestBasic.cpp
index 921ea408009c..45679d4a9996 100644
--- a/gfx/layers/apz/test/gtest/TestBasic.cpp
+++ b/gfx/layers/apz/test/gtest/TestBasic.cpp
@@ -344,7 +344,7 @@ TEST_F(APZCBasicTester, OverScrollPanningAbort) {
   // the pan does not end.
   int touchStart = 500;
   int touchEnd = 10;
-  Pan(apzc, touchStart, touchEnd, true); // keep finger down
+  Pan(apzc, touchStart, touchEnd, PanOptions::KeepFingerDown);
   EXPECT_TRUE(apzc->IsOverscrolled());
 
   // Check that calling CancelAnimation() while the user is still panning
diff --git a/gfx/layers/apz/test/gtest/TestGestureDetector.cpp b/gfx/layers/apz/test/gtest/TestGestureDetector.cpp
index fcbc250f760c..dba4f3cafc38 100644
--- a/gfx/layers/apz/test/gtest/TestGestureDetector.cpp
+++ b/gfx/layers/apz/test/gtest/TestGestureDetector.cpp
@@ -235,7 +235,7 @@ protected:
     uint64_t blockId = 0;
 
     // Start the fling down.
-    Pan(apzc, touchStart, touchEnd, false, nullptr, nullptr, &blockId);
+    Pan(apzc, touchStart, touchEnd, PanOptions::None, nullptr, nullptr, &blockId);
     apzc->ConfirmTarget(blockId);
     apzc->ContentReceivedInputBlock(blockId, false);
 
diff --git a/gfx/layers/apz/test/gtest/TestScrollHandoff.cpp b/gfx/layers/apz/test/gtest/TestScrollHandoff.cpp
index d57d09ead6cb..0f4f9bf44037 100644
--- a/gfx/layers/apz/test/gtest/TestScrollHandoff.cpp
+++ b/gfx/layers/apz/test/gtest/TestScrollHandoff.cpp
@@ -217,7 +217,7 @@ TEST_F(APZScrollHandoffTester, StuckInOverscroll_Bug1073250) {
   TestAsyncPanZoomController* child = ApzcOf(layers[1]);
 
   // Pan, causing the parent APZC to overscroll.
-  Pan(manager, 10, 40, true /* keep finger down */);
+  Pan(manager, 10, 40, PanOptions::KeepFingerDown);
   EXPECT_FALSE(child->IsOverscrolled());
   EXPECT_TRUE(rootApzc->IsOverscrolled());
 
@@ -255,7 +255,7 @@ TEST_F(APZScrollHandoffTester, StuckInOverscroll_Bug1231228) {
   TestAsyncPanZoomController* child = ApzcOf(layers[1]);
 
   // Pan, causing the parent APZC to overscroll.
-  Pan(manager, 60, 90, true /* keep finger down */);
+  Pan(manager, 60, 90, PanOptions::KeepFingerDown);
   EXPECT_FALSE(child->IsOverscrolled());
   EXPECT_TRUE(rootApzc->IsOverscrolled());
 
@@ -289,7 +289,7 @@ TEST_F(APZScrollHandoffTester, StuckInOverscroll_Bug1240202a) {
   TestAsyncPanZoomController* child = ApzcOf(layers[1]);
 
   // Pan, causing the parent APZC to overscroll.
-  Pan(manager, 60, 90, true /* keep finger down */);
+  Pan(manager, 60, 90, PanOptions::KeepFingerDown);
   EXPECT_FALSE(child->IsOverscrolled());
   EXPECT_TRUE(rootApzc->IsOverscrolled());
 
@@ -322,7 +322,7 @@ TEST_F(APZScrollHandoffTester, StuckInOverscroll_Bug1240202b) {
   TestAsyncPanZoomController* child = ApzcOf(layers[1]);
 
   // Pan, causing the parent APZC to overscroll.
-  Pan(manager, 60, 90, true /* keep finger down */);
+  Pan(manager, 60, 90, PanOptions::KeepFingerDown);
   EXPECT_FALSE(child->IsOverscrolled());
   EXPECT_TRUE(rootApzc->IsOverscrolled());