WIP - compositor worker mega patch.

third_party/WebKit/Source/core/dom/CompositorProxy.h

Index: third_party/WebKit/Source/core/dom/CompositorProxy.h
diff --git a/third_party/WebKit/Source/core/dom/CompositorProxy.h b/third_party/WebKit/Source/core/dom/CompositorProxy.h
index 18a9d74d75e5102e4a96f9435ac7f98d6b849e18..76c3b2a647c84224175cce555336eece9a37dbef 100644
--- a/third_party/WebKit/Source/core/dom/CompositorProxy.h
+++ b/third_party/WebKit/Source/core/dom/CompositorProxy.h
@@ -6,6 +6,8 @@
 #define CompositorProxy_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "core/CoreExport.h"
+#include "core/dom/CompositorProxyClient.h"
 #include "core/dom/DOMMatrix.h"
 #include "core/dom/Element.h"
 #include "platform/heap/Handle.h"
@@ -19,17 +21,18 @@ namespace blink {
 class DOMMatrix;
 class ExceptionState;
 class ExecutionContext;
+class WebCompositorMutableState;
 
-class CompositorProxy final : public GarbageCollectedFinalized<CompositorProxy>, public ScriptWrappable {
+class CORE_EXPORT CompositorProxy final : public GarbageCollectedFinalized<CompositorProxy>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static CompositorProxy* create(ExecutionContext*, Element*, const Vector<String>& attributeArray, ExceptionState&);
-    static CompositorProxy* create(uint64_t element, uint32_t compositorMutableProperties);
+    static CompositorProxy* create(ExecutionContext*, uint64_t element, uint32_t compositorMutableProperties);
     virtual ~CompositorProxy();
 
     DEFINE_INLINE_TRACE()
     {
-        visitor->trace(m_transform);
+        visitor->trace(m_client);
     }
 
     uint64_t elementId() const { return m_elementId; }
@@ -49,23 +52,26 @@ public:
     void setScrollTop(double, ExceptionState&);
     void setTransform(DOMMatrix*, ExceptionState&);
 
+    void takeCompositorMutableState(WebCompositorMutableState*);
+    void clearClient() { m_client = nullptr; }
+
 protected:
     CompositorProxy(Element&, const Vector<String>& attributeArray);
-    CompositorProxy(uint64_t element, uint32_t compositorMutableProperties);
+    CompositorProxy(uint64_t element, uint32_t compositorMutableProperties, CompositorProxyClient*);
 
 private:
     bool raiseExceptionIfNotMutable(uint32_t compositorMutableProperty, ExceptionState&) const;
 
+    void setNeedsSync();
+
     const uint64_t m_elementId = 0;
     const uint32_t m_compositorMutableProperties = 0;
-    uint32_t m_mutatedProperties = 0;
 
-    double m_opacity = 0;
-    double m_scrollLeft = 0;
-    double m_scrollTop = 0;
-    Member<DOMMatrix> m_transform;
+    bool m_needsSync = false;
 
     bool m_connected = true;
+    RawPtrWillBeMember<CompositorProxyClient> m_client;
+    OwnPtr<WebCompositorMutableState> m_state;
 };
 
 } // namespace blink