align top and bounds computations

src/core/SkPath.cpp

Index: src/core/SkPath.cpp
diff --git a/src/core/SkPath.cpp b/src/core/SkPath.cpp
index 45429a6e1253bd9f5b93481b9a3e5d48af2508ee..aa99ce4f0e1da80840eededc3cfb82bc9c97a00d 100644
--- a/src/core/SkPath.cpp
+++ b/src/core/SkPath.cpp
@@ -631,6 +631,18 @@ bool SkPath::getLastPt(SkPoint* lastPt) const {
     return false;
 }
 
+void SkPath::setPt(int index, SkScalar x, SkScalar y) {
+    SkDEBUGCODE(this->validate();)
+
+    int count = fPathRef->countPoints();
+    if (count <= index) {
+        return;
+    } else {
+        SkPathRef::Editor ed(&fPathRef);
+        ed.atPoint(index)->set(x, y);
+    }
+}
+
 void SkPath::setLastPt(SkScalar x, SkScalar y) {
     SkDEBUGCODE(this->validate();)