Bug 1949814 - Implement interactionCount for Performance interface r=sefeng,webidl,saschanaz

Differential Revision: https://phabricator.services.mozilla.com/D239186

dom/performance/Performance.h

@@ -149,6 +149,8 @@ class Performance : public DOMEventTargetHelper {
 
   virtual class EventCounts* EventCounts() = 0;
 
+  virtual uint64_t InteractionCount() = 0;
+
   virtual void QueueNavigationTimingEntry() = 0;
 
   virtual void UpdateNavigationTimingEntry() = 0;

dom/performance/PerformanceInteractionMetrics.h

@@ -30,6 +30,8 @@ class PerformanceInteractionMetrics final {
     return mPendingPointerDowns;
   }
 
+  uint64_t InteractionCount() { return mInteractionCount; }
+
   uint64_t IncreaseInteractionValueAndCount();
 
   virtual ~PerformanceInteractionMetrics() = default;

dom/performance/PerformanceMainThread.cpp

@@ -559,6 +559,11 @@ EventCounts* PerformanceMainThread::EventCounts() {
   return mEventCounts;
 }
 
+uint64_t PerformanceMainThread::InteractionCount() {
+  MOZ_ASSERT(StaticPrefs::dom_performance_event_timing_enable_interactionid());
+  return mInteractionMetrics.InteractionCount();
+}
+
 void PerformanceMainThread::GetEntries(
     nsTArray<RefPtr<PerformanceEntry>>& aRetval) {
   aRetval = mResourceEntries.Clone();

dom/performance/PerformanceMainThread.h

@@ -114,6 +114,8 @@ class PerformanceMainThread final : public Performance,
 
   class EventCounts* EventCounts() override;
 
+  uint64_t InteractionCount() override;
+
   bool IsGlobalObjectWindow() const override { return true; };
 
   bool HasDispatchedInputEvent() const { return mHasDispatchedInputEvent; }

dom/performance/PerformanceWorker.h

@@ -90,6 +90,10 @@ class PerformanceWorker final : public Performance {
     MOZ_CRASH("This should not be called on workers");
   }
 
+  uint64_t InteractionCount() override {
+    MOZ_CRASH("This should not be called on workers");
+  }
+
  protected:
   ~PerformanceWorker();
 

dom/webidl/Performance.webidl

@@ -94,4 +94,7 @@ partial interface Performance {
 partial interface Performance {
   [Pref="dom.enable_event_timing", SameObject]
   readonly attribute EventCounts eventCounts;
+
+  [Pref="dom.performance.event_timing.enable_interactionid"]
+  readonly attribute unsigned long long interactionCount;
 };

testing/web-platform/meta/event-timing/idlharness.any.js.ini

@@ -4,12 +4,6 @@
     if os == "win": [OK, TIMEOUT]
 
 [idlharness.any.html]
-  [Performance interface: attribute interactionCount]
-    expected: FAIL
-
-  [Performance interface: performance must inherit property "interactionCount" with the proper type]
-    expected: FAIL
-
 
 [idlharness.any.sharedworker.html]
 

testing/web-platform/meta/event-timing/idlharness.window.js.ini

@@ -1,6 +0,0 @@
-[idlharness.window.html]
-  [Performance interface: attribute interactionCount]
-    expected: FAIL
-
-  [Performance interface: performance must inherit property "interactionCount" with the proper type]
-    expected: FAIL

testing/web-platform/meta/event-timing/interaction-count-click.html.ini

@@ -1,8 +0,0 @@
-[interaction-count-click.html]
-  expected:
-    if debug and (os == "win") and (processor == "x86_64"): CRASH
-    if debug and (os == "linux") and fission: CRASH
-    if debug and (os == "android"): CRASH
-    if not debug and (os == "android"): [OK, CRASH]
-  [EventTiming: verify interactionCount for click interaction]
-    expected: FAIL

testing/web-platform/meta/event-timing/interaction-count-tap.html.ini

@@ -1,3 +0,0 @@
-[interaction-count-tap.html]
-  [EventTiming: verify interactionCount for tap interaction]
-    expected: FAIL