Recycle small uniform buffers.

src/gpu/vk/GrVkPipelineState.cpp

Index: src/gpu/vk/GrVkPipelineState.cpp
diff --git a/src/gpu/vk/GrVkPipelineState.cpp b/src/gpu/vk/GrVkPipelineState.cpp
index 94d6305bc951a5eba89a6bc8839d94f7a6e15990..a436b817a39eef0d683a075d6dabc52aa6ec6593 100644
--- a/src/gpu/vk/GrVkPipelineState.cpp
+++ b/src/gpu/vk/GrVkPipelineState.cpp
@@ -67,8 +67,8 @@ GrVkPipelineState::GrVkPipelineState(GrVkGpu* gpu,
         fStartDS = SkTMin(fStartDS, (int)GrVkUniformHandler::kSamplerDescSet);
     }
 
-    fVertexUniformBuffer.reset(GrVkUniformBuffer::Create(gpu, vertexUniformSize, true));
-    fFragmentUniformBuffer.reset(GrVkUniformBuffer::Create(gpu, fragmentUniformSize, true));
+    fVertexUniformBuffer.reset(GrVkUniformBuffer::Create(gpu, vertexUniformSize));
+    fFragmentUniformBuffer.reset(GrVkUniformBuffer::Create(gpu, fragmentUniformSize));
 
     fNumSamplers = numSamplers;
 }