Conditionally insert gl_PointSize into shaders.

src/gpu/vk/GrVkPipelineState.cpp

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "GrVkPipelineState.h"
 
 #include "GrPipeline.h"
@@ skipping 469 matching lines @@
     key |= (blendInfo.fEquation << (kBlendWriteShift + 2 * kBlendCoeffShift));
 
     return key;
 }
 
 bool GrVkPipelineState::Desc::Build(Desc* desc,
                                     const GrPrimitiveProcessor& primProc,
                                     const GrPipeline& pipeline,
                                     GrPrimitiveType primitiveType,
                                     const GrGLSLCaps& caps) {
-    if (!INHERITED::Build(desc, primProc, pipeline, caps)) {
+    if (!INHERITED::Build(desc, primProc, primitiveType == kPoints_GrPrimitiveType, pipeline,
+                          caps)) {
         return false;
     }
 
     GrProcessorKeyBuilder b(&desc->key());
     GrVkRenderTarget* vkRT = (GrVkRenderTarget*)pipeline.getRenderTarget();
     vkRT->simpleRenderPass()->genKey(&b);
 
     pipeline.getStencil().genKey(&b);
 
     SkASSERT(sizeof(GrDrawFace) <= sizeof(uint32_t));
     b.add32((int32_t)pipeline.getDrawFace());
 
     b.add32(get_blend_info_key(pipeline));
 
     b.add32(primitiveType);
 
     return true;
 }