Add support for converting cc::FilterOperations into an SkImageFilter

webkit/renderer/compositor_bindings/web_filter_operations_impl.cc

Index: webkit/renderer/compositor_bindings/web_filter_operations_impl.cc
diff --git a/webkit/renderer/compositor_bindings/web_filter_operations_impl.cc b/webkit/renderer/compositor_bindings/web_filter_operations_impl.cc
index 76f22d782725d91b107f5eb67a728275102421d5..6fe6e2779517a2645617c889c5e78337e096eb7f 100644
--- a/webkit/renderer/compositor_bindings/web_filter_operations_impl.cc
+++ b/webkit/renderer/compositor_bindings/web_filter_operations_impl.cc
@@ -5,6 +5,7 @@
 #include "webkit/renderer/compositor_bindings/web_filter_operations_impl.h"
 
 #include "base/basictypes.h"
+#include "skia/ext/refptr.h"
 #include "third_party/WebKit/public/platform/WebColor.h"
 #include "third_party/WebKit/public/platform/WebPoint.h"
 #include "third_party/skia/include/core/SkScalar.h"
@@ -79,6 +80,12 @@ void WebFilterOperationsImpl::appendSaturatingBrightnessFilter(float amount) {
       cc::FilterOperation::CreateSaturatingBrightnessFilter(amount));
 }
 
+void WebFilterOperationsImpl::appendReferenceFilter(
+    SkImageFilter* image_filter) {
+  filter_operations_.Append(
+      cc::FilterOperation::CreateReferenceFilter(skia::SharePtr(image_filter)));
+}
+
 void WebFilterOperationsImpl::clear() {
   filter_operations_.Clear();
 }