Add special handling of rectori case for gpu

src/core/SkPath.cpp

Index: src/core/SkPath.cpp
===================================================================
--- src/core/SkPath.cpp	(revision 9163)
+++ src/core/SkPath.cpp	(working copy)
@@ -600,17 +600,18 @@
     return isRectContour(false, &currVerb, &pts, isClosed, direction);
 }
 
-bool SkPath::isNestedRects(SkRect rects[2]) const {
+bool SkPath::isNestedRects(SkRect rects[2], Direction dirs[2]) const {
     SkDEBUGCODE(this->validate();)
     int currVerb = 0;
     const SkPoint* pts = fPathRef->points();
     const SkPoint* first = pts;
-    if (!isRectContour(true, &currVerb, &pts, NULL, NULL)) {
+    Direction testDirs[2];
+    if (!isRectContour(true, &currVerb, &pts, NULL, &testDirs[0])) {
         return false;
     }
     const SkPoint* last = pts;
     SkRect testRects[2];
-    if (isRectContour(false, &currVerb, &pts, NULL, NULL)) {
+    if (isRectContour(false, &currVerb, &pts, NULL, &testDirs[1])) {
         testRects[0].set(first, SkToS32(last - first));
         testRects[1].set(last, SkToS32(pts - last));
         if (testRects[0].contains(testRects[1])) {
@@ -618,6 +619,10 @@
                 rects[0] = testRects[0];
                 rects[1] = testRects[1];
             }
+            if (dirs) {
+                dirs[0] = testDirs[0];
+                dirs[1] = testDirs[1];
+            }
             return true;
         }
         if (testRects[1].contains(testRects[0])) {
@@ -625,6 +630,10 @@
                 rects[0] = testRects[1];
                 rects[1] = testRects[0];
             }
+            if (dirs) {
+                dirs[0] = testDirs[1];
+                dirs[1] = testDirs[0];
+            }
             return true;
         }
     }