Remove GrFontScaler class

src/gpu/batches/GrAtlasTextBatch.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrAtlasTextBatch.h"
 
 #include "GrBatchFlushState.h"
@@ skipping 118 matching lines @@
         SkDebugf("Could not allocate vertices\n");
         return;
     }
 
     unsigned char* currVertex = reinterpret_cast<unsigned char*>(vertices);
 
     // We cache some values to avoid going to the glyphcache for the same fontScaler twice
     // in a row
     const SkDescriptor* desc = nullptr;
     SkGlyphCache* cache = nullptr;
-    GrFontScaler* scaler = nullptr;
     SkTypeface* typeface = nullptr;
 
     GrBlobRegenHelper helper(this, target, &flushInfo);
 
     for (int i = 0; i < fGeoCount; i++) {
         const Geometry& args = fGeoData[i];
         Blob* blob = args.fBlob;
         size_t byteCount;
         void* blobVertices;
         int subRunGlyphCount;
         blob->regenInBatch(target, fFontCache, &helper, args.fRun, args.fSubRun, &cache,
-                           &typeface, &scaler, &desc, vertexStride, args.fViewMatrix, args.fX,
+                           &typeface, &desc, vertexStride, args.fViewMatrix, args.fX,
                            args.fY, args.fColor, &blobVertices, &byteCount, &subRunGlyphCount);
 
         // now copy all vertices
         memcpy(currVertex, blobVertices, byteCount);
 
 #ifdef SK_DEBUG
         // bounds sanity check
         SkRect rect;
         rect.setLargestInverted();
         SkPoint* vertex = (SkPoint*) ((char*)blobVertices);
@@ skipping 152 matching lines @@
                                                     flags,
                                                     this->usesLocalCoords());
 #endif
     }
 
 }
 
 void GrBlobRegenHelper::flush() {
     fBatch->flush(fTarget, fFlushInfo);
 }