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

include/core/SkPaint.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPaint_DEFINED
 #define SkPaint_DEFINED
 
@@ skipping 1084 matching lines @@
         static const SkScalar kMag2Max = kMaxSize * kMaxSize;
         return kMag2Max;
     }
 
     friend class SkAutoGlyphCache;
     friend class SkAutoGlyphCacheNoGamma;
     friend class SkCanvas;
     friend class SkDraw;
     friend class SkGraphics; // So Term() can be called.
     friend class SkPDFDevice;
+    friend class GrTextContext;
     friend class GrBitmapTextContext;
     friend class GrDistanceFieldTextContext;
     friend class GrStencilAndCoverTextContext;
     friend class GrPathRendering;
     friend class GrGLPathRendering;
     friend class SkTextToPathIter;
     friend class SkCanonicalizePaint;
 
 #ifdef SK_BUILD_FOR_ANDROID
     // In order for the == operator to work properly this must be the last field
     // in the struct so that we can do a memcmp to this field's offset.
     uint32_t        fGenerationID;
 #endif
 };
 
 #endif