1 files changed, 10 insertions, 4 deletions
diff --git a/dom/canvas/WebGLContext.h b/dom/canvas/WebGLContext.h
index 5ab584174c..d144584f4f 100644
--- a/dom/canvas/WebGLContext.h
+++ b/dom/canvas/WebGLContext.h
@@ -303,6 +303,15 @@ class WebGLContext : public VRefCounted, public SupportsWeakPtr {
   uint64_t mNextFenceId = 1;
   uint64_t mCompletedFenceId = 0;
 
+  mutable std::list<WeakPtr<WebGLSync>> mPendingSyncs;
+  mutable RefPtr<nsIRunnable> mPollPendingSyncs_Pending;
+  static constexpr uint32_t kPollPendingSyncs_DelayMs =
+      4;  // Four times a frame.
+ public:
+  void EnsurePollPendingSyncs_Pending() const;
+  void PollPendingSyncs() const;
+
+ protected:
   std::unique_ptr<gl::Texture> mIncompleteTexOverride;
 
  public:
@@ -756,8 +765,6 @@ class WebGLContext : public VRefCounted, public SupportsWeakPtr {
   virtual Maybe<double> GetParameter(GLenum pname);
   Maybe<std::string> GetString(GLenum pname) const;
 
-  bool IsEnabled(GLenum cap);
-
  private:
   static StaticMutex sLruMutex;
   static std::list<WebGLContext*> sLru MOZ_GUARDED_BY(sLruMutex);
@@ -780,8 +787,7 @@ class WebGLContext : public VRefCounted, public SupportsWeakPtr {
   };
   ScissorRect mScissorRect = {};
 
-  bool ValidateCapabilityEnum(GLenum cap);
-  bool* GetStateTrackingSlot(GLenum cap, GLuint i);
+  bool* GetStateTrackingSlot(GLenum cap);
 
   // Allocation debugging variables
   mutable uint64_t mDataAllocGLCallCount = 0;