Add resource tracking output and command buffer recycling

src/gpu/vk/GrVkGpuCommandBuffer.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 "GrVkGpuCommandBuffer.h"
 
 #include "GrMesh.h"
@@ skipping 66 matching lines @@
                                                               vkStencilOps);
     } else {
         fRenderPass = fGpu->resourceProvider().findRenderPass(*target,
                                                               vkColorOps,
                                                               vkResolveOps,
                                                               vkStencilOps);
     }
 
     GrColorToRGBAFloat(colorInfo.fClearColor, fColorClearValue.color.float32);
 
-    fCommandBuffer = GrVkSecondaryCommandBuffer::Create(gpu, gpu->cmdPool(), fRenderPass);
-    fCommandBuffer->begin(gpu, target->framebuffer());
+    fCommandBuffer = gpu->resourceProvider().findOrCreateSecondaryCommandBuffer();
+    fCommandBuffer->begin(gpu, target->framebuffer(), fRenderPass);
 }
 
 GrVkGpuCommandBuffer::~GrVkGpuCommandBuffer() {
     fCommandBuffer->unref(fGpu);
     fRenderPass->unref(fGpu);
 }
 
 GrGpu* GrVkGpuCommandBuffer::gpu() { return fGpu; }
 
 void GrVkGpuCommandBuffer::end() {
@@ skipping 329 matching lines @@
             fGpu->stats()->incNumDraws();
         } while ((nonIdxMesh = iter.next()));
     }
 
     // Technically we don't have to call this here (since there is a safety check in
     // pipelineState:setData but this will allow for quicker freeing of resources if the
     // pipelineState sits in a cache for a while.
     pipelineState->freeTempResources(fGpu);
 }