diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/include/gpu/GrClipData.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/include/gpu/GrClipData.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrClip_DEFINED
+#define GrClip_DEFINED
+
+#include "SkClipStack.h"
+
+class GrSurface;
+struct SkIRect;
+
+/**
+ * GrClipData encapsulates the information required to construct the clip
+ * masks. 'fOrigin' is only non-zero when saveLayer has been called
+ * with an offset bounding box. The clips in 'fClipStack' are in
+ * device coordinates (i.e., they have been translated by -fOrigin w.r.t.
+ * the canvas' device coordinates).
+ */
+class GrClipData : public SkNoncopyable {
+public:
+    const SkClipStack*  fClipStack;
+    SkIPoint            fOrigin;
+
+    GrClipData()
+        : fClipStack(NULL) {
+        fOrigin.setZero();
+    }
+
+    bool operator==(const GrClipData& other) const {
+        if (fOrigin != other.fOrigin) {
+            return false;
+        }
+
+        if (NULL != fClipStack && NULL != other.fClipStack) {
+            return *fClipStack == *other.fClipStack;
+        }
+
+        return fClipStack == other.fClipStack;
+    }
+
+    bool operator!=(const GrClipData& other) const {
+        return !(*this == other);
+    }
+
+    void getConservativeBounds(const GrSurface* surface,
+                               SkIRect* devResult,
+                               bool* isIntersectionOfRects = NULL) const;
+};
+
+#endif