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

cc/scheduler/scheduler_settings.h

Index: cc/scheduler/scheduler_settings.h
diff --git a/cc/scheduler/scheduler_settings.h b/cc/scheduler/scheduler_settings.h
index 2f07b30ad547804219f47cab8d7ce5cf49837cad..bc047179444b5e0f283eee54cf2005d242c0457b 100644
--- a/cc/scheduler/scheduler_settings.h
+++ b/cc/scheduler/scheduler_settings.h
@@ -5,8 +5,9 @@
 #ifndef CC_SCHEDULER_SCHEDULER_SETTINGS_H_
 #define CC_SCHEDULER_SCHEDULER_SETTINGS_H_
 
+#include <memory>
+
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "cc/base/cc_export.h"
@@ -37,7 +38,7 @@ class CC_EXPORT SchedulerSettings {
   int maximum_number_of_failed_draws_before_draw_is_forced;
   base::TimeDelta background_frame_interval;
 
-  scoped_ptr<base::trace_event::ConvertableToTraceFormat> AsValue() const;
+  std::unique_ptr<base::trace_event::ConvertableToTraceFormat> AsValue() const;
 };
 
 }  // namespace cc