Add samples to Viewer.

src/fonts/SkTestScalerContext.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 "SkAdvancedTypefaceMetrics.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkDescriptor.h"
 #include "SkFontDescriptor.h"
 #include "SkGlyph.h"
 #include "SkMask.h"
 // #include "SkOTUtils.h"
 #include "SkScalerContext.h"
 #include "SkTestScalerContext.h"
 #include "SkTypefaceCache.h"
 
 SkTestFont::SkTestFont(const SkTestFontData& fontData)
     : INHERITED()
     , fCharCodes(fontData.fCharCodes)
-    , fCharCodesCount(fontData.fCharCodesCount)
+    , fCharCodesCount(fontData.fCharCodes ? fontData.fCharCodesCount : 0)
     , fWidths(fontData.fWidths)
     , fMetrics(fontData.fMetrics)
     , fName(fontData.fName)
     , fPaths(nullptr)
 {
     init(fontData.fPoints, fontData.fVerbs);
 #ifdef SK_DEBUG
     sk_bzero(fDebugBits, sizeof(fDebugBits));
     sk_bzero(fDebugOverage, sizeof(fDebugOverage));
 #endif
@@ skipping 247 matching lines @@
 
 private:
     SkTestTypeface*  fFace;
     SkMatrix         fMatrix;
 };
 
 SkScalerContext* SkTestTypeface::onCreateScalerContext(const SkScalerContextEffects& effects,
                                                        const SkDescriptor* desc) const {
     return new SkTestScalerContext(const_cast<SkTestTypeface*>(this), effects, desc);
 }