Implement PaintWorkletGlobalScope#registerPaint() for the CSS Paint API

third_party/WebKit/Source/bindings/core/v8/V8PerContextData.h

Index: third_party/WebKit/Source/bindings/core/v8/V8PerContextData.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8PerContextData.h b/third_party/WebKit/Source/bindings/core/v8/V8PerContextData.h
index 00d12d94473102318911cb6ecfa5ece56338c249..dd3d0e0aa41e11885764c4f317eef89b153345e5 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8PerContextData.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8PerContextData.h
@@ -31,6 +31,7 @@
 #ifndef V8PerContextData_h
 #define V8PerContextData_h
 
+#include "bindings/core/v8/CSSPaintBinding.h"
 #include "bindings/core/v8/CustomElementBinding.h"
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "bindings/core/v8/V8GlobalValueMap.h"
@@ -91,6 +92,7 @@ public:
     V8NPObjectMap* getV8NPObjectMap() { return &m_v8NPObjectMap; }
 
     void addCustomElementBinding(CustomElementDefinition*, PassOwnPtr<CustomElementBinding>);
+    void addCSSPaintBinding(PassOwnPtr<CSSPaintBinding>);
 
     V8DOMActivityLogger* activityLogger() const { return m_activityLogger; }
     void setActivityLogger(V8DOMActivityLogger* activityLogger) { m_activityLogger = activityLogger; }
@@ -124,6 +126,9 @@ private:
     typedef Vector<OwnPtr<CustomElementBinding>> CustomElementBindingList;
     CustomElementBindingList m_customElementBindings;
 
+    typedef Vector<OwnPtr<CSSPaintBinding>> CSSPaintBindingList;
+    CSSPaintBindingList m_cssPaintBindings;

[ikilpatrick, 2016/03/30 19:12:50]

Instead of this I could also add a V8PerContextDataForModules which hangs off
this object, but that seemed like overkill?

+
     // This is owned by a static hash map in V8DOMActivityLogger.
     V8DOMActivityLogger* m_activityLogger;