Revert "Revert "Change how vertex/instance attributes are handled in geometry processors.""

This reverts commit 5045e501d2aec23e5f1e4b46346033ac3202c6b0.

TBR=csmartdalton@google.com

Change-Id: Ifbf5f1d8f8ef340fdc69653e931b6d68d4bf0854
Reviewed-on: https://skia-review.googlesource.com/135862
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/ops/GrAtlasTextOp.cpp b/src/gpu/ops/GrAtlasTextOp.cpp
index 1ea3ddf..fc5e580 100644
--- a/src/gpu/ops/GrAtlasTextOp.cpp
+++ b/src/gpu/ops/GrAtlasTextOp.cpp
@@ -312,8 +312,8 @@
     }
 
     flushInfo.fGlyphsToFlush = 0;
-    size_t vertexStride = flushInfo.fGeometryProcessor->getVertexStride();
-    SkASSERT(vertexStride == GrTextBlob::GetVertexStride(maskFormat, vmPerspective));
+    size_t vertexStride = GrTextBlob::GetVertexStride(maskFormat, vmPerspective);
+    SkASSERT(vertexStride == flushInfo.fGeometryProcessor->debugOnly_vertexStride());
 
     int glyphCount = this->numGlyphs();
     const GrBuffer* vertexBuffer;