Add ability to compute text intercepts to Font

third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 692 matching lines @@
     SkPaint paint(immutableState()->fillPaint());
     paint.setColor(strokeColor().rgb());
     paint.setStyle(SkPaint::kStroke_Style);
     paint.setStrokeWidth(1);
 
     skRect.inset(0.5f, 0.5f);
     drawRect(skRect, paint);
   }
 }
 
+int GraphicsContext::getTextIntercepts(const blink::Font& font,
+                                       const blink::TextRunPaintInfo& runInfo,
+                                       const SkScalar* bounds,
+                                       SkScalar* intervals) {
+  if (contextDisabled())
+    return 0;
+
+  return font.getTextIntercepts(m_canvas, runInfo, m_deviceScaleFactor,
+                                immutableState()->fillPaint(), bounds,
+                                intervals);
+}
+
 void GraphicsContext::drawText(const Font& font,
                                const TextRunPaintInfo& runInfo,
                                const FloatPoint& point,
                                const SkPaint& paint) {
   if (contextDisabled())
     return;
 
   if (font.drawText(m_canvas, runInfo, point, m_deviceScaleFactor, paint))
     m_paintController.setTextPainted();
 }
@@ skipping 687 matching lines @@
   static const SkPMColor colors[] = {
       SkPreMultiplyARGB(0x60, 0xFF, 0x00, 0x00),  // More transparent red
       SkPreMultiplyARGB(0x60, 0xC0, 0xC0, 0xC0)   // More transparent gray
   };
 
   return colors[index];
 }
 #endif
 
 }  // namespace blink