Add unit test for vertex attribute count.

src/gpu/GrTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrTest.h"
 
 #include "GrBatchAtlas.h"
@@ skipping 170 matching lines @@
     out->appendf("Transfers to Texture: %d\n", fTransfersToTexture);
     out->appendf("Stencil Buffer Creates: %d\n", fStencilAttachmentCreates);
     out->appendf("Number of draws: %d\n", fNumDraws);
 }
 
 void GrGpu::Stats::dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values) {
     keys->push_back(SkString("render_target_binds")); values->push_back(fRenderTargetBinds);
     keys->push_back(SkString("shader_compilations")); values->push_back(fShaderCompilations);
     keys->push_back(SkString("texture_uploads")); values->push_back(fTextureUploads);
     keys->push_back(SkString("number_of_draws")); values->push_back(fNumDraws);
+    keys->push_back(SkString("number_of_failed_draws")); values->push_back(fNumFailedDraws);
 }
 
 #endif
 
 #if GR_CACHE_STATS
 void GrResourceCache::getStats(Stats* stats) const {
     stats->reset();
 
     stats->fTotal = this->getResourceCount();
     stats->fNumNonPurgeable = fNonpurgeableResources.count();
@@ skipping 212 matching lines @@
     SkASSERT(nullptr == fGpu);
     fGpu = new MockGpu(this, options);
     SkASSERT(fGpu);
     this->initCommon(options);
 
     // We delete these because we want to test the cache starting with zero resources. Also, none of
     // these objects are required for any of tests that use this context. TODO: make stop allocating
     // resources in the buffer pools.
     fDrawingManager->abandon();
 }