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

cc/test/fake_painted_scrollbar_layer.h

Index: cc/test/fake_painted_scrollbar_layer.h
diff --git a/cc/test/fake_painted_scrollbar_layer.h b/cc/test/fake_painted_scrollbar_layer.h
index 3568087c2d95ac404bd2480a7edfc3ed5fbac142..3391797a8577093069b7dc6edd9b448f9a0383dc 100644
--- a/cc/test/fake_painted_scrollbar_layer.h
+++ b/cc/test/fake_painted_scrollbar_layer.h
@@ -7,7 +7,8 @@
 
 #include <stddef.h>
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "cc/layers/painted_scrollbar_layer.h"
 #include "cc/test/fake_scrollbar.h"
 
@@ -28,7 +29,7 @@ class FakePaintedScrollbarLayer : public PaintedScrollbarLayer {
 
   void PushPropertiesTo(LayerImpl* layer) override;
 
-  scoped_ptr<base::AutoReset<bool>> IgnoreSetNeedsCommit();
+  std::unique_ptr<base::AutoReset<bool>> IgnoreSetNeedsCommit();
 
   size_t push_properties_count() const { return push_properties_count_; }
   void reset_push_properties_count() { push_properties_count_ = 0; }