fix comment on GrBatchTextStrike

src/gpu/GrBatchFontCache.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrBatchFontCache_DEFINED
 #define GrBatchFontCache_DEFINED
 
 #include "GrBatchAtlas.h"
 #include "GrFontScaler.h"
 #include "GrGlyph.h"
 #include "SkTDynamicHash.h"
 #include "SkVarAlloc.h"
 
 class GrBatchFontCache;
 class GrBatchTarget;
 class GrGpu;
 
 /**
- *  The GrBatchTextStrike manages a pool of CPU backing memory for Glyph Masks.  This backing memory
- *  is abstracted by GrGlyph, and indexed by a PackedID and GrFontScaler.  The GrFontScaler is what
- *  actually creates the mask.
+ *  The GrBatchTextStrike manages a pool of CPU backing memory for GrGlyphs.  This backing memory
+ *  is indexed by a PackedID and GrFontScaler.  The GrFontScaler is what actually creates the mask.
  */
 class GrBatchTextStrike : public SkNVRefCnt<GrBatchTextStrike> {
 public:
     GrBatchTextStrike(GrBatchFontCache*, const GrFontDescKey* fontScalerKey);
     ~GrBatchTextStrike();
 
     const GrFontDescKey* getFontScalerKey() const { return fFontScalerKey; }
     GrBatchFontCache* getBatchFontCache() const { return fBatchFontCache; }
 
     inline GrGlyph* getGlyph(GrGlyph::PackedID packed, GrFontScaler* scaler) {
@@ skipping 155 matching lines @@
 
     static void HandleEviction(GrBatchAtlas::AtlasID, void*);
 
     GrContext* fContext;
     SkTDynamicHash<GrBatchTextStrike, GrFontDescKey> fCache;
     GrBatchAtlas* fAtlases[kMaskFormatCount];
     GrBatchTextStrike* fPreserveStrike;
 };
 
 #endif