Convert //cc from scoped_ptr to std::unique_ptr.

cc/layers/nine_patch_layer_impl.h

Index: cc/layers/nine_patch_layer_impl.h
diff --git a/cc/layers/nine_patch_layer_impl.h b/cc/layers/nine_patch_layer_impl.h
index 539d8e717aed319b6c88bfc6c1e73f727b3a9308..1fe8e7f2a39eef00adcde12f0c688b94f23185d5 100644
--- a/cc/layers/nine_patch_layer_impl.h
+++ b/cc/layers/nine_patch_layer_impl.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/ui_resource_layer_impl.h"
@@ -24,9 +25,9 @@ namespace cc {
 
 class CC_EXPORT NinePatchLayerImpl : public UIResourceLayerImpl {
  public:
-  static scoped_ptr<NinePatchLayerImpl> Create(LayerTreeImpl* tree_impl,
-                                               int id) {
-    return make_scoped_ptr(new NinePatchLayerImpl(tree_impl, id));
+  static std::unique_ptr<NinePatchLayerImpl> Create(LayerTreeImpl* tree_impl,
+                                                    int id) {
+    return base::WrapUnique(new NinePatchLayerImpl(tree_impl, id));
   }
   ~NinePatchLayerImpl() override;
 
@@ -59,7 +60,7 @@ class CC_EXPORT NinePatchLayerImpl : public UIResourceLayerImpl {
                  bool fill_center,
                  bool nearest_neighbor);
 
-  scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
+  std::unique_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
   void PushPropertiesTo(LayerImpl* layer) override;
 
   void AppendQuads(RenderPass* render_pass,