Worklet: Lazily create PaintWorkletGlobalScopes

third_party/WebKit/Source/modules/csspaint/PaintWorklet.h

Index: third_party/WebKit/Source/modules/csspaint/PaintWorklet.h
diff --git a/third_party/WebKit/Source/modules/csspaint/PaintWorklet.h b/third_party/WebKit/Source/modules/csspaint/PaintWorklet.h
index 59c61e500d6619fb4320bab1922818ad34afa63e..38dbccea2e0d9c024e2c28262417f9653d79c41a 100644
--- a/third_party/WebKit/Source/modules/csspaint/PaintWorklet.h
+++ b/third_party/WebKit/Source/modules/csspaint/PaintWorklet.h
@@ -24,17 +24,18 @@ class MODULES_EXPORT PaintWorklet final : public MainThreadWorklet {
   static PaintWorklet* Create(LocalFrame*);
   ~PaintWorklet() override;
 
-  WorkletGlobalScopeProxy* GetWorkletGlobalScopeProxy() const final;
   CSSPaintDefinition* FindDefinition(const String& name);
   void AddPendingGenerator(const String& name, CSSPaintImageGeneratorImpl*);
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
+  friend class PaintWorkletTest;
+
   explicit PaintWorklet(LocalFrame*);
 
-  // TODO(nhiroki): Make (Paint)WorkletGlobalScopeProxy GC-managed object.
-  std::unique_ptr<PaintWorkletGlobalScopeProxy> global_scope_proxy_;
+  // Implements MainThreadWorklet.
+  void AddWorkletGlobalScopesIfNeeded() final;
 };
 
 }  // namespace blink