Fix build break after r7411 when GR_STATIC_RECT_VB is enabled.
Review URL: https://codereview.appspot.com/7220051

git-svn-id: http://skia.googlecode.com/svn/trunk@7415 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrDrawState.h b/src/gpu/GrDrawState.h
index 326df0b..e70c38f 100644
--- a/src/gpu/GrDrawState.h
+++ b/src/gpu/GrDrawState.h
@@ -255,8 +255,14 @@
      * old coord system to the new coord system.
      */
     void preConcatStageMatrices(const SkMatrix& preConcat) {
+        this->preConcatStageMatrices(~0U, preConcat);
+    }
+    /**
+     * Version of above that applies the update matrix selectively to stages via a mask.
+     */
+    void preConcatStageMatrices(uint32_t stageMask, const SkMatrix& preConcat) {
         for (int i = 0; i < kNumStages; ++i) {
-            if (this->isStageEnabled(i)) {
+            if (((1 << i) & stageMask) && this->isStageEnabled(i)) {
                 fStages[i].preConcatCoordChange(preConcat);
             }
         }