Revert "Rename IntRectExtent to IntBoxExtent"

Source/platform/graphics/filters/FilterOperations.h

Index: Source/platform/graphics/filters/FilterOperations.h
diff --git a/Source/platform/graphics/filters/FilterOperations.h b/Source/platform/graphics/filters/FilterOperations.h
index 3b4752bb12316ee9d92f69407dd101b99bbab91f..4413b1d868b1188a7482bd956266572162359eef 100644
--- a/Source/platform/graphics/filters/FilterOperations.h
+++ b/Source/platform/graphics/filters/FilterOperations.h
@@ -27,14 +27,14 @@
 #define FilterOperations_h
 
 #include "platform/PlatformExport.h"
-#include "platform/geometry/IntBoxExtent.h"
+#include "platform/geometry/IntRectExtent.h"
 #include "platform/graphics/filters/FilterOperation.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
-typedef IntBoxExtent FilterOutsets;
+typedef IntRectExtent FilterOutsets;
 
 class PLATFORM_EXPORT FilterOperations {
     WTF_MAKE_FAST_ALLOCATED;