Add static buffer support

src/gpu/vk/GrVkTransferBuffer.cpp

 /*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "GrVkTransferBuffer.h"
 #include "GrVkGpu.h"
 #include "SkTraceMemoryDump.h"
 
 
 GrVkTransferBuffer* GrVkTransferBuffer::Create(GrVkGpu* gpu, size_t size, GrVkBuffer::Type type) {
     GrVkBuffer::Desc desc;
-    desc.fDynamic = false;
+    desc.fDynamic = true;
     SkASSERT(GrVkBuffer::kCopyRead_Type == type || GrVkBuffer::kCopyWrite_Type == type);
     desc.fType = type;
     desc.fSizeInBytes = size;
 
     const GrVkBuffer::Resource* bufferResource = GrVkBuffer::Create(gpu, desc);
     if (!bufferResource) {
         return nullptr;
     }
 
     GrVkTransferBuffer* buffer = new GrVkTransferBuffer(gpu, desc, bufferResource);
@@ skipping 26 matching lines @@
     INHERITED::onAbandon();
 }
 
 void GrVkTransferBuffer::setMemoryBacking(SkTraceMemoryDump* traceMemoryDump,
                                           const SkString& dumpName) const {
     SkString buffer_id;
     buffer_id.appendU64((uint64_t)this->buffer());
     traceMemoryDump->setMemoryBacking(dumpName.c_str(), "vk_buffer",
                                       buffer_id.c_str());
 }