Consolidate GPU buffer implementations

src/gpu/vk/GrVkTransferBuffer.cpp

Index: src/gpu/vk/GrVkTransferBuffer.cpp
diff --git a/src/gpu/vk/GrVkTransferBuffer.cpp b/src/gpu/vk/GrVkTransferBuffer.cpp
index 37306277642468905be01953fefa5be45f9d6690..43fd3af9a931653fa555fd3e36106a8e4d6c542b 100644
--- a/src/gpu/vk/GrVkTransferBuffer.cpp
+++ b/src/gpu/vk/GrVkTransferBuffer.cpp
@@ -31,7 +31,9 @@ GrVkTransferBuffer* GrVkTransferBuffer::Create(GrVkGpu* gpu, size_t size, GrVkBu
 
 GrVkTransferBuffer::GrVkTransferBuffer(GrVkGpu* gpu, const GrVkBuffer::Desc& desc,
                                        const GrVkBuffer::Resource* bufferResource)
-    : INHERITED(gpu, desc.fSizeInBytes)
+    : INHERITED(gpu, kCopyRead_Type == desc.fType ?
+                     kXferCpuToGpu_GrBufferType : kXferGpuToCpu_GrBufferType,
+                desc.fSizeInBytes, kStream_GrAccessPattern, false)
     , GrVkBuffer(desc, bufferResource) {
     this->registerWithCache();
 }