Bug 1435022 - Clean up GetLastComposeTime. r=sotaro

MozReview-Commit-ID: CEaz01FyjSs --HG-- extra : rebase_source : 44c92477f6374764e084249bae74639c3706b5c0
sailfishos · May 27, 2020 · f508ebf · f508ebf
1 parent a2433c8
commit f508ebf
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Showing 2 changed files with 12 additions and 5 deletions.
diff --git a/gfx/layers/ipc/CompositorVsyncScheduler.cpp b/gfx/layers/ipc/CompositorVsyncScheduler.cpp
@@ -344,5 +344,12 @@ CompositorVsyncScheduler::ComposeToTarget(gfx::DrawTarget* aTarget, const IntRec
   mVsyncSchedulerOwner->CompositeToTarget(aTarget, aRect);
 }
 
+const TimeStamp&
+CompositorVsyncScheduler::GetLastComposeTime() const
+{
+  MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
+  return mLastCompose;
+}
+
 } // namespace layers
 } // namespace mozilla
diff --git a/gfx/layers/ipc/CompositorVsyncScheduler.h b/gfx/layers/ipc/CompositorVsyncScheduler.h
@@ -62,11 +62,11 @@ class CompositorVsyncScheduler
   void Composite(TimeStamp aVsyncTimestamp);
   void ForceComposeToTarget(gfx::DrawTarget* aTarget, const gfx::IntRect* aRect);
 
-  const TimeStamp& GetLastComposeTime()
-  {
-    return mLastCompose;
-  }
-
+  /**
+   * Return the vsync timestamp of the last or ongoing composite. Must be called
+   * on the compositor thread.
+   */
+  const TimeStamp& GetLastComposeTime() const;
 #ifdef COMPOSITOR_PERFORMANCE_WARNING
   const TimeStamp& GetExpectedComposeStartTime()
   {