Convert GrBuffer owners to sk_sp

Change-Id: Id49d775c30f01f4de05f385227c5ed5d90d6839e
Reviewed-on: https://skia-review.googlesource.com/c/187920
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/ccpr/GrCCStroker.cpp b/src/gpu/ccpr/GrCCStroker.cpp
index f836774..a4905b3 100644
--- a/src/gpu/ccpr/GrCCStroker.cpp
+++ b/src/gpu/ccpr/GrCCStroker.cpp
@@ -735,7 +735,7 @@
     SkASSERT(endIdx >= startIdx);
     if (int instanceCount = endIdx - startIdx) {
         GrMesh& mesh = fMeshesBuffer.emplace_back(GrPrimitiveType::kTriangleStrip);
-        mesh.setInstanced(fInstanceBuffer.get(), instanceCount, baseInstance + startIdx,
+        mesh.setInstanced(fInstanceBuffer, instanceCount, baseInstance + startIdx,
                           numStripVertices);
         fScissorsBuffer.push_back(drawBounds);
     }
@@ -749,7 +749,7 @@
         SkASSERT(endIdx >= startIdx);
         if (int instanceCount = endIdx - startIdx) {
             GrMesh& mesh = fMeshesBuffer.emplace_back(GrPrimitiveType::kTriangleStrip);
-            mesh.setInstanced(fInstanceBuffer.get(), instanceCount, baseInstance + startIdx,
+            mesh.setInstanced(fInstanceBuffer, instanceCount, baseInstance + startIdx,
                               numStripVertices);
             fScissorsBuffer.push_back(subBatch.fScissor);
             startIdx = endIdx;
@@ -784,7 +784,7 @@
     int endIdx = batch.fNonScissorEndInstances->*InstanceType;
     SkASSERT(endIdx >= startIdx);
     if (int instanceCount = endIdx - startIdx) {
-        processor.appendMesh(fInstanceBuffer.get(), instanceCount, baseInstance + startIdx,
+        processor.appendMesh(fInstanceBuffer, instanceCount, baseInstance + startIdx,
                              &fMeshesBuffer);
         fScissorsBuffer.push_back(drawBounds);
     }
@@ -797,7 +797,7 @@
         endIdx = subBatch.fEndInstances->*InstanceType;
         SkASSERT(endIdx >= startIdx);
         if (int instanceCount = endIdx - startIdx) {
-            processor.appendMesh(fInstanceBuffer.get(), instanceCount, baseInstance + startIdx,
+            processor.appendMesh(fInstanceBuffer, instanceCount, baseInstance + startIdx,
                                  &fMeshesBuffer);
             fScissorsBuffer.push_back(subBatch.fScissor);
             startIdx = endIdx;