Consolidate handling of infinitely thin primitives and aa bloat handing WRT batch bounds

src/gpu/batches/GrAtlasTextBatch.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 GrAtlasTextBatch_DEFINED
 #define GrAtlasTextBatch_DEFINED
 
@@ skipping 64 matching lines @@
     }
 
     // to avoid even the initial copy of the struct, we have a getter for the first item which
     // is used to seed the batch with its initial geometry.  After seeding, the client should call
     // init() so the Batch can initialize itself
     Geometry& geometry() { return fGeoData[0]; }
 
     void init() {
         const Geometry& geo = fGeoData[0];
         fBatch.fColor = geo.fColor;
-
-        geo.fBlob->computeSubRunBounds(&fBounds, geo.fRun, geo.fSubRun, geo.fViewMatrix, geo.fX,
+        SkRect bounds;
+        geo.fBlob->computeSubRunBounds(&bounds, geo.fRun, geo.fSubRun, geo.fViewMatrix, geo.fX,
                                        geo.fY);
+        // We don't have tight bounds on the glyph paths in device space. For the purposes of bounds
+        // we treat this as a set of non-AA rects rendered with a texture.
+        this->setBounds(bounds, HasAABloat::kNo, IsZeroArea::kNo);
     }
 
     const char* name() const override { return "TextBatch"; }
 
     SkString dumpInfo() const override;
 
 protected:
     void computePipelineOptimizations(GrInitInvariantOutput* color,
                                       GrInitInvariantOutput* coverage,
                                       GrBatchToXPOverrides* overrides) const override;
@@ skipping 112 matching lines @@
         fFlushInfo->fGlyphsToFlush += glyphCount;
     }
 
 private:
     const GrAtlasTextBatch* fBatch;
     GrVertexBatch::Target* fTarget;
     GrAtlasTextBatch::FlushInfo* fFlushInfo;
 };
 
 #endif