Unify glyph metrics to use the same Skia API

third_party/WebKit/Source/platform/fonts/skia/SkiaTextMetrics.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SkiaTextMetrics_h
+#define SkiaTextMetrics_h
+
+#include "platform/fonts/Glyph.h"
+
+#include <SkPaint.h>
+#include <hb.h>
+
+namespace blink {
+
+class SkiaTextMetrics final {
+public:
+    SkiaTextMetrics(const SkPaint*);
+
+    void getGlyphWidthAndExtentsForHarfBuzz(hb_codepoint_t, hb_position_t* width, hb_glyph_extents_t*);
+
+    void getSkiaBoundsForGlyph(Glyph, SkRect* bounds);
+    float getSkiaWidthForGlyph(Glyph);
+
+private:
+    const SkPaint* m_paint;
+};
+
+} // namespace blink
+
+#endif