1 files changed, 33 insertions, 0 deletions
diff --git a/cc/stubs/Region.h b/cc/stubs/Region.h
index 6930641..130e3e6 100644
--- a/cc/stubs/Region.h
+++ b/cc/stubs/Region.h
@@ -11,6 +11,7 @@
 #else
 #include "third_party/WebKit/Source/WebCore/platform/graphics/Region.h"
 #endif
+#include "ui/gfx/rect.h"
 
 namespace cc {
 
@@ -32,8 +33,40 @@ public:
         : WebCore::Region(region)
     {
     }
+
+    Region(const gfx::Rect& rect)
+        : WebCore::Region(WebCore::IntRect(rect.x(), rect.y(), rect.width(), rect.height()))
+    {
+    }
+
+    bool IsEmpty() const { return isEmpty(); }
+
+    bool Contains(const gfx::Point& point) const { return contains(cc::IntPoint(point)); }
+    bool Contains(const gfx::Rect& rect) const { return contains(cc::IntRect(rect)); }
+    void Subtract(const gfx::Rect& rect) { subtract(cc::IntRect(rect)); }
+    void Subtract(const Region& region) { subtract(region); }
+    void Union(const gfx::Rect& rect) { unite(cc::IntRect(rect)); }
+    void Union(const Region& region) { unite(region); }
+    void Intersect(const gfx::Rect& rect) { intersect(cc::IntRect(rect)); }
+    void Intersect(const Region& region) { intersect(region); }
+
+    gfx::Rect bounds() const { return cc::IntRect(WebCore::Region::bounds()); }
+
+private:
+    bool isEmpty() const { return WebCore::Region::isEmpty(); }
+    bool contains(const IntPoint& point) const { return WebCore::Region::contains(point); }
+    bool contains(const IntRect& rect) const { return WebCore::Region::contains(rect); }
+    void subtract(const IntRect& rect) { return WebCore::Region::subtract(rect); }
+    void subtract(const Region& region) { return WebCore::Region::subtract(region); }
+    void unite(const IntRect& rect) { return WebCore::Region::unite(rect); }
+    void unite(const Region& region) { return WebCore::Region::unite(region); }
+    void intersect(const IntRect& rect) { return WebCore::Region::intersect(rect); }
+    void intersect(const Region& region) { return WebCore::Region::intersect(region); }
 };
 
+inline Region subtract(const Region& region, const gfx::Rect& rect) { return WebCore::intersect(region, cc::IntRect(rect)); }
+inline Region intersect(const Region& region, const gfx::Rect& rect) { return WebCore::intersect(region, cc::IntRect(rect)); }
+
 }
 
 #endif  // CC_STUBS_REGION_H_