Add requireHWAA param to GrPipelineBuilder constructor

src/gpu/text/GrStencilAndCoverTextContext.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrStencilAndCoverTextContext_DEFINED
 #define GrStencilAndCoverTextContext_DEFINED
 
@@ skipping 55 matching lines @@
                               SkDrawFilter* drawFilter,
                               const SkIRect& clipBounds);
 
     class FallbackBlobBuilder;
 
     class TextRun {
     public:
         TextRun(const SkPaint& fontAndStroke);
         ~TextRun();
 
+        bool isAntiAlias() const { return fFont.isAntiAlias(); }
+
         void setText(const char text[], size_t byteLength, SkScalar x, SkScalar y);
 
         void setPosText(const char text[], size_t byteLength, const SkScalar pos[],
                         int scalarsPerPosition, const SkPoint& offset);
 
         void draw(GrContext*, GrDrawContext*, GrPipelineBuilder*, GrColor, const SkMatrix&,
                   const SkSurfaceProps&,
                   SkScalar x, SkScalar y, const SkIRect& clipBounds,
                   GrAtlasTextContext* fallbackTextContext, const SkPaint& originalSkPaint) const;
 
@@ skipping 62 matching lines @@
     void purgeToFit(const TextBlob&);
 
     GrAtlasTextContext*                                       fFallbackTextContext;
     SkTHashMap<uint32_t, TextBlob*>                           fBlobIdCache;
     SkTHashTable<TextBlob*, const TextBlob::Key&, TextBlob>   fBlobKeyCache;
     SkTInternalLList<TextBlob>                                fLRUList;
     size_t                                                    fCacheSize;
 };
 
 #endif