Start canonicalizing color for all A8 textblobs

gm/textbloblooper.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 
 #include "Sk2DPathEffect.h"
 #include "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
 #include "SkColorFilter.h"
 #include "SkCanvas.h"
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkLayerDrawLooper.h"
 #include "SkRandom.h"
 #include "SkTextBlob.h"
 
 namespace skiagm {
 
 static const int kWidth = 1250;
 static const int kHeight = 700;
 
+// Unlike the variant in sk_tool_utils, this version positions the glyphs on a diagonal
 static void add_to_text_blob(SkTextBlobBuilder* builder, const char* text, const SkPaint& origPaint,
                              SkScalar x, SkScalar y) {
     SkPaint paint(origPaint);
     SkTDArray<uint16_t> glyphs;
 
     size_t len = strlen(text);
     glyphs.append(paint.textToGlyphs(text, len, NULL));
     paint.textToGlyphs(text, len, glyphs.begin());
 
     const SkScalar advanceX = paint.getTextSize() * 0.85f;
@@ skipping 212 matching lines @@
     SkAutoTUnref<const SkTextBlob> fBlob;
     SkTArray<SkAutoTUnref<SkLayerDrawLooper>, true> fLoopers;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return SkNEW(TextBlobLooperGM); )
 }