Fix off by one error in last advanceCount in SkFontHost_FreeType.

src/ports/SkFontHost_FreeType.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 "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 587 matching lines @@
             info->fGlyphWidths->fAdvance.append(1, &advance);
             finishRange(info->fGlyphWidths.get(), 0,
                         SkAdvancedTypefaceMetrics::WidthRange::kDefault);
         } else if (!cid) {
             appendRange(&info->fGlyphWidths, 0);
             // So as to not blow out the stack, get advances in batches.
             for (int gID = 0; gID < face->num_glyphs; gID += 128) {
                 FT_Fixed advances[128];
                 int advanceCount = 128;
                 if (gID + advanceCount > face->num_glyphs)
-                    advanceCount = face->num_glyphs - gID + 1;
+                    advanceCount = face->num_glyphs - gID;
                 getAdvances(face, gID, advanceCount, FT_LOAD_NO_SCALE,
                             advances);
                 for (int i = 0; i < advanceCount; i++) {
                     int16_t advance = advances[i];
                     info->fGlyphWidths->fAdvance.append(1, &advance);
                 }
             }
             finishRange(info->fGlyphWidths.get(), face->num_glyphs - 1,
                         SkAdvancedTypefaceMetrics::WidthRange::kRange);
         } else {
@@ skipping 882 matching lines @@
         *style = (SkTypeface::Style) tempStyle;
     }
     if (isFixedPitch) {
         *isFixedPitch = FT_IS_FIXED_WIDTH(face);
     }
 
     FT_Done_Face(face);
     FT_Done_FreeType(library);
     return true;
 }