Add Sample slide for Rectanizers

include/gpu/GrPoint.h

Index: include/gpu/GrPoint.h
diff --git a/include/gpu/GrPoint.h b/include/gpu/GrPoint.h
index 7be5736f563b6fe544ab02222e7927dc40dba0c8..16738f52434f9f4fa2dd05235025b244e040b5c8 100644
--- a/include/gpu/GrPoint.h
+++ b/include/gpu/GrPoint.h
@@ -15,14 +15,18 @@
 #include "SkScalar.h"
 #include "SkPoint.h"
 
-#if 0
-#define GrPoint     SkPoint
-#define GrVec       SkVector
-#endif
-
 struct GrIPoint16 {
     int16_t fX, fY;
 
+    static GrIPoint16 Make(intptr_t x, intptr_t y) {
+        GrIPoint16 pt;
+        pt.set(x, y);
+        return pt;
+    }
+
+    int16_t x() const { return fX; }
+    int16_t y() const { return fY; }
+
     void set(intptr_t x, intptr_t y) {
         fX = SkToS16(x);
         fY = SkToS16(y);