fix the rendering error for drawPosText_asPaths

src/core/SkDraw.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDraw.h"
 #include "SkBlitter.h"
 #include "SkBounder.h"
@@ skipping 1882 matching lines @@
     SkPaint paint(origPaint);
     SkScalar matrixScale = paint.setupForAsPaths();
 
     SkMatrix matrix;
     matrix.setScale(matrixScale, matrixScale);
 
     SkDrawCacheProc     glyphCacheProc = paint.getDrawCacheProc();
     SkAutoGlyphCache    autoCache(paint, NULL, NULL);
     SkGlyphCache*       cache = autoCache.getCache();
 
+    // After SkGlyphCache is detached, the path effect should be set to NULL in
+    // SkPaint. And the path for text will be filled, so SkPaint should be set
+    // to fill style, w/ the exception of hairline stroked text w/o path effect.
+    if (origPaint.getStyle() == SkPaint::kStroke_Style &&
+        origPaint.getStrokeWidth() == 0 && origPaint.getPathEffect() == NULL) {
+        paint.setStyle(SkPaint::kStroke_Style);
+    } else {
+        paint.setStyle(SkPaint::kFill_Style);
+    }
+
+    paint.setPathEffect(NULL);
+
     const char*        stop = text + byteLength;
     AlignProc_scalar   alignProc = pick_align_proc_scalar(paint.getTextAlign());
     TextMapState       tms(SkMatrix::I(), constY);
     TextMapState::Proc tmsProc = tms.pickProc(scalarsPerPosition);
 
     while (text < stop) {
         const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0);
         if (glyph.fWidth) {
             const SkPath* path = cache->findPath(glyph);
             if (path) {
@@ skipping 915 matching lines @@
         mask->fImage = SkMask::AllocImage(size);
         memset(mask->fImage, 0, mask->computeImageSize());
     }
 
     if (SkMask::kJustComputeBounds_CreateMode != mode) {
         draw_into_mask(*mask, devPath, style);
     }
 
     return true;
 }