Add GrVkCopyPipeline to handle vulkan copies as draws

src/gpu/vk/GrVkGpu.h

Index: src/gpu/vk/GrVkGpu.h
diff --git a/src/gpu/vk/GrVkGpu.h b/src/gpu/vk/GrVkGpu.h
index 8df6e6cfdccc21622ae17525dc3a024be4f4b90d..eeaacf3d1b08d407cc08277027b37220923d0998 100644
--- a/src/gpu/vk/GrVkGpu.h
+++ b/src/gpu/vk/GrVkGpu.h
@@ -14,6 +14,7 @@
 #include "GrGpuFactory.h"
 #include "vk/GrVkBackendContext.h"
 #include "GrVkCaps.h"
+#include "GrVkCopyManager.h"
 #include "GrVkIndexBuffer.h"
 #include "GrVkMemory.h"
 #include "GrVkResourceProvider.h"
@@ -59,7 +60,9 @@ public:
         return fPhysDevMemProps;
     }
 
-    GrVkResourceProvider& resourceProvider() { return fResourceProvider;  }
+    GrVkResourceProvider& resourceProvider() { return fResourceProvider; }
+
+    GrVkPrimaryCommandBuffer* currentCommandBuffer() { return fCurrentCmdBuffer; }
 
     enum SyncQueue {
         kForce_SyncQueue,
@@ -262,6 +265,8 @@ private:
 
     SkAutoTDelete<GrVkHeap>                fHeaps[kHeapCount];
 
+    GrVkCopyManager                        fCopyManager;
+
 #ifdef SK_ENABLE_VK_LAYERS
     // For reporting validation layer errors
     VkDebugReportCallbackEXT               fCallback;