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

cc/playback/clip_path_display_item.h

Index: cc/playback/clip_path_display_item.h
diff --git a/cc/playback/clip_path_display_item.h b/cc/playback/clip_path_display_item.h
index f946c14713402593372e494d83b7959407c54fab..5bbb1f16df36ed7ba06e0719dcf4e262dbd6b95e 100644
--- a/cc/playback/clip_path_display_item.h
+++ b/cc/playback/clip_path_display_item.h
@@ -7,7 +7,9 @@
 
 #include <stddef.h>
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
+#include "base/memory/ptr_util.h"
 #include "cc/base/cc_export.h"
 #include "cc/playback/display_item.h"
 #include "third_party/skia/include/core/SkPath.h"
@@ -51,8 +53,8 @@ class CC_EXPORT EndClipPathDisplayItem : public DisplayItem {
   explicit EndClipPathDisplayItem(const proto::DisplayItem& proto);
   ~EndClipPathDisplayItem() override;
 
-  static scoped_ptr<EndClipPathDisplayItem> Create() {
-    return make_scoped_ptr(new EndClipPathDisplayItem());
+  static std::unique_ptr<EndClipPathDisplayItem> Create() {
+    return base::WrapUnique(new EndClipPathDisplayItem());
   }
 
   void ToProtobuf(proto::DisplayItem* proto,