Create GrVkCopyPipeline class

src/gpu/vk/GrVkCopyPipeline.h

+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrVkCopyPipeline_DEFINED
+#define GrVkCopyPipeline_DEFINED
+
+#include "GrVkPipeline.h"
+
+class GrVkCopyPipeline : public GrVkPipeline {
+public:
+    // We expect the passed in renderPass to be stored on the GrVkResourceProvider and not a local
+    // object of the client.
+    static GrVkCopyPipeline* Create(GrVkGpu* gpu,
+                                    VkPipelineShaderStageCreateInfo* shaderStageInfo,
+                                    VkPipelineLayout pipelineLayout,
+                                    int numSamples,
+                                    const GrVkRenderPass& renderPass,
+                                    VkPipelineCache cache);
+
+    bool isCompatible(const GrVkRenderPass& rp) const;
+
+#ifdef SK_TRACE_VK_RESOURCES
+    void dumpInfo() const override {
+        SkDebugf("GrVkCopyPipeline: %d (%d refs)\n", fPipeline, this->getRefCnt());
+    }
+#endif
+
+private:
+    GrVkCopyPipeline(VkPipeline pipeline, const GrVkRenderPass* renderPass)
+        : INHERITED(pipeline)
+        , fRenderPass(renderPass) {
+    }
+
+    const GrVkRenderPass* fRenderPass;
+
+    typedef GrVkPipeline INHERITED;
+};
+
+#endif