Change drawText() to generate positions and send to drawPosText()

src/gpu/GrDistanceFieldTextContext.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDistanceFieldTextContext_DEFINED
 #define GrDistanceFieldTextContext_DEFINED
 
@@ skipping 32 matching lines @@
     void*                              fVertices;
     int32_t                            fMaxVertices;
     GrTexture*                         fCurrTexture;
     int                                fCurrVertex;
     SkRect                             fVertexBounds;
 
     GrDistanceFieldTextContext(GrContext*, const SkDeviceProperties&, bool enable);
 
     virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE;
 
-    virtual void onDrawText(const GrPaint&, const SkPaint&, const char text[], size_t byteLength,
-                            SkScalar x, SkScalar y) SK_OVERRIDE;
     virtual void onDrawPosText(const GrPaint&, const SkPaint&,
                                const char text[], size_t byteLength,
                                const SkScalar pos[], int scalarsPerPosition,
                                const SkPoint& offset) SK_OVERRIDE;
 
     void init(const GrPaint&, const SkPaint&);
     void appendGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontScaler*);
     void setupCoverageEffect(const SkColor& filteredColor);
     void flush();                 // automatically called by destructor
     void finish();
 };
 
 #endif