make setScaleTranslate public

include/core/SkMatrix.h

Index: include/core/SkMatrix.h
diff --git a/include/core/SkMatrix.h b/include/core/SkMatrix.h
index d6d029597f14598dfeb4140767227b7ae7b506f2..5b22a774814de5c02111d0e3c656b10f90526551 100644
--- a/include/core/SkMatrix.h
+++ b/include/core/SkMatrix.h
@@ -710,6 +710,32 @@ public:
         this->setTypeMask(kUnknown_Mask);
     }
 
+    /**
+     *  Initialize the matrix to be scale + post-translate.
+     */
+    void setScaleTranslate(SkScalar sx, SkScalar sy, SkScalar tx, SkScalar ty) {
+        fMat[kMScaleX] = sx;
+        fMat[kMSkewX]  = 0;
+        fMat[kMTransX] = tx;
+        
+        fMat[kMSkewY]  = 0;
+        fMat[kMScaleY] = sy;
+        fMat[kMTransY] = ty;
+        
+        fMat[kMPersp0] = 0;
+        fMat[kMPersp1] = 0;
+        fMat[kMPersp2] = 1;
+        
+        unsigned mask = 0;
+        if (sx != 1 || sy != 1) {
+            mask |= kScale_Mask;
+        }
+        if (tx || ty) {
+            mask |= kTranslate_Mask;
+        }
+        this->setTypeMask(mask | kRectStaysRect_Mask);
+    }
+    
 private:
     enum {
         /** Set if the matrix will map a rectangle to another rectangle. This
@@ -748,29 +774,6 @@ private:
 
     static void ComputeInv(SkScalar dst[9], const SkScalar src[9], double invDet, bool isPersp);
 
-    void setScaleTranslate(SkScalar sx, SkScalar sy, SkScalar tx, SkScalar ty) {
-        fMat[kMScaleX] = sx;
-        fMat[kMSkewX]  = 0;
-        fMat[kMTransX] = tx;
-
-        fMat[kMSkewY]  = 0;
-        fMat[kMScaleY] = sy;
-        fMat[kMTransY] = ty;
-
-        fMat[kMPersp0] = 0;
-        fMat[kMPersp1] = 0;
-        fMat[kMPersp2] = 1;
-
-        unsigned mask = 0;
-        if (sx != 1 || sy != 1) {
-            mask |= kScale_Mask;
-        }
-        if (tx || ty) {
-            mask |= kTranslate_Mask;
-        }
-        this->setTypeMask(mask | kRectStaysRect_Mask);
-    }
-
     uint8_t computeTypeMask() const;
     uint8_t computePerspectiveTypeMask() const;