Properly recycle uniform buffers in vulkan

src/gpu/vk/GrVkBuffer.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 "GrVkBuffer.h"
 #include "GrVkGpu.h"
 #include "GrVkMemory.h"
@@ skipping 162 matching lines @@
         return false;
     }
 
     // TODO: update data based on buffer offset
     if (!fDesc.fDynamic) {
         return gpu->updateBuffer(this, src, fOffset, srcSizeInBytes);
     }
 
     if (!fResource->unique()) {
         // in use by the command buffer, so we need to create a new one
-        fResource->unref(gpu);
-        fResource = Create(gpu, fDesc);
+        fResource->recycle(gpu);
+        fResource = this->createResource(gpu, fDesc);
         if (createdNewBuffer) {
             *createdNewBuffer = true;
         }
     }
 
     void* mapPtr;
     const GrVkAlloc& alloc = this->alloc();
     VkResult err = VK_CALL(gpu, MapMemory(gpu->device(), alloc.fMemory,
                                           alloc.fOffset + fOffset,
                                           srcSizeInBytes, 0, &mapPtr));
 
     if (VK_SUCCESS != err) {
         return false;
     }
 
     memcpy(mapPtr, src, srcSizeInBytes);
 
     VK_CALL(gpu, UnmapMemory(gpu->device(), alloc.fMemory));
 
     return true;
 }
 
 void GrVkBuffer::validate() const {
     SkASSERT(!fResource || kVertex_Type == fDesc.fType || kIndex_Type == fDesc.fType
              || kCopyRead_Type == fDesc.fType || kCopyWrite_Type == fDesc.fType
              || kUniform_Type == fDesc.fType);
 }