created stub for metal gpu command buffer

Bug: skia:
Change-Id: I11ffb1126ea4665c456c2b74e98d9e9021a5aca2
Reviewed-on: https://skia-review.googlesource.com/141080
Commit-Queue: Timothy Liang <timliang@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/src/gpu/mtl/GrMtlGpu.h b/src/gpu/mtl/GrMtlGpu.h
index 8a68b763eb..1c25dedbac 100644
--- a/src/gpu/mtl/GrMtlGpu.h
+++ b/src/gpu/mtl/GrMtlGpu.h
@@ -65,13 +65,9 @@ public:
     GrGpuRTCommandBuffer* createCommandBuffer(
                                     GrRenderTarget*, GrSurfaceOrigin,
                                     const GrGpuRTCommandBuffer::LoadAndStoreInfo&,
-                                    const GrGpuRTCommandBuffer::StencilLoadAndStoreInfo&) override {
-        return nullptr;
-    }
+                                    const GrGpuRTCommandBuffer::StencilLoadAndStoreInfo&) override;
 
-    GrGpuTextureCommandBuffer* createCommandBuffer(GrTexture*, GrSurfaceOrigin) override {
-        return nullptr;
-    }
+    GrGpuTextureCommandBuffer* createCommandBuffer(GrTexture*, GrSurfaceOrigin) override;
 
     GrFence SK_WARN_UNUSED_RESULT insertFence() override { return 0; }
     bool waitFence(GrFence, uint64_t) override { return true; }