Merge "drawTextRSXform is deprecated"

void SkiaCanvas::drawLayoutOnPath(const minikin::Layout& layout, float hOffset, float vOffset,

                                  const SkPaint& paint, const SkPath& path, size_t start,

                                  size_t end) {

    SkFont font = SkFont::LEGACY_ExtractFromPaint(paint);

    SkPaint paintCopy(paint);

    if (mPaintFilter) {

        mPaintFilter->filter(&paintCopy);

    SkASSERT(paintCopy.getTextEncoding() == kGlyphID_SkTextEncoding);

    const int N = end - start;

    SkAutoSTMalloc<1024, uint8_t> storage(N * (sizeof(uint16_t) + sizeof(SkRSXform)));

    SkRSXform* xform = (SkRSXform*)storage.get();

    uint16_t* glyphs = (uint16_t*)(xform + N);

    SkTextBlobBuilder builder;

    auto rec = builder.allocRunRSXform(font, N);

    SkRSXform* xform = (SkRSXform*)rec.pos;

    uint16_t* glyphs = rec.glyphs;

    SkPathMeasure meas(path, false);

    for (size_t i = start; i < end; i++) {

        xform[i - start].fTy = pos.y() + tan.x() * y - halfWidth * tan.y();

    }

    this->asSkCanvas()->drawTextRSXform(glyphs, sizeof(uint16_t) * N, xform, nullptr, paintCopy);

    this->asSkCanvas()->drawTextBlob(builder.make(), 0, 0, paintCopy);

}

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