Fix drawPosText() bounds bug.

src/core/SkRecordDraw.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRecordDraw.h"
 #include "SkPatchUtils.h"
 
@@ skipping 331 matching lines @@
         return this->adjustAndMap(dst, op.paint);
     }
 
     Bounds bounds(const DrawPosText& op) const {
         const int N = op.paint.countText(op.text, op.byteLength);
         if (N == 0) {
             return Bounds::MakeEmpty();
         }
 
         SkRect dst;
-        dst.set(op.pos, op.paint.countText(op.text, N));
+        dst.set(op.pos, N);
         AdjustTextForFontMetrics(&dst, op.paint);
         return this->adjustAndMap(dst, &op.paint);
     }
     Bounds bounds(const DrawPosTextH& op) const {
         const int N = op.paint.countText(op.text, op.byteLength);
         if (N == 0) {
             return Bounds::MakeEmpty();
         }
 
         SkScalar left = op.xpos[0], right = op.xpos[0];
@@ skipping 107 matching lines @@
     // Used to track the bounds of Save/Restore blocks and the control ops inside them.
     SkTDArray<SaveBounds> fSaveStack;
     SkTDArray<unsigned>   fControlIndices;
 };
 
 }  // namespace SkRecords
 
 void SkRecordFillBounds(const SkRecord& record, SkBBoxHierarchy* bbh) {
     SkRecords::FillBounds(record, bbh);
 }