Remove vertex/index buffer factilities from GrDrawTarget.

Review URL: https://codereview.chromium.org/1105263002
diff --git a/src/gpu/GrTessellatingPathRenderer.cpp b/src/gpu/GrTessellatingPathRenderer.cpp
index cc6e2a2..e00792e 100644
--- a/src/gpu/GrTessellatingPathRenderer.cpp
+++ b/src/gpu/GrTessellatingPathRenderer.cpp
@@ -11,6 +11,7 @@
 #include "GrBatchTarget.h"
 #include "GrDefaultGeoProcFactory.h"
 #include "GrPathUtils.h"
+#include "GrVertexBuffer.h"
 #include "SkChunkAlloc.h"
 #include "SkGeometry.h"