Allow a small tolerance in GrAtlasTextBatch bounds test.

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 146 matching lines @@
 #ifdef SK_DEBUG
         // bounds sanity check
         SkRect rect;
         rect.setLargestInverted();
         SkPoint* vertex = (SkPoint*) ((char*)blobVertices);
         rect.growToInclude(vertex, vertexStride, kVerticesPerGlyph * subRunGlyphCount);
 
         if (this->usesDistanceFields()) {
             args.fViewMatrix.mapRect(&rect);
         }
-        SkASSERT(fBounds.contains(rect));
+        // Allow for small numerical error in the bounds.
+        SkRect bounds = fBounds;
+        bounds.outset(0.001f, 0.001f);
+        SkASSERT(bounds.contains(rect));
 #endif
 
         currVertex += byteCount;
     }
 
     // Make sure to attach the last cache if applicable
     if (cache) {
         SkGlyphCache::AttachCache(cache);
     }
     this->flush(target, &flushInfo);
@@ skipping 130 matching lines @@
                                                     flags,
                                                     this->usesLocalCoords());
 #endif
     }
 
 }
 
 void GrBlobRegenHelper::flush() {
     fBatch->flush(fTarget, fFlushInfo);
 }