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

cc/scheduler/delay_based_time_source.h

Index: cc/scheduler/delay_based_time_source.h
diff --git a/cc/scheduler/delay_based_time_source.h b/cc/scheduler/delay_based_time_source.h
index 1be9d9b5a0e6858a45973b1ce8c4b8a99ff5fe52..be9e5c4b5d24b47eca6f3b401b87327e0cad7541 100644
--- a/cc/scheduler/delay_based_time_source.h
+++ b/cc/scheduler/delay_based_time_source.h
@@ -5,11 +5,12 @@
 #ifndef CC_SCHEDULER_DELAY_BASED_TIME_SOURCE_H_
 #define CC_SCHEDULER_DELAY_BASED_TIME_SOURCE_H_
 
+#include <memory>
 #include <string>
 
 #include "base/cancelable_callback.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
+#include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "cc/base/cc_export.h"
@@ -35,10 +36,10 @@ class CC_EXPORT DelayBasedTimeSourceClient {
 // delays. DelayBasedTimeSource uses base::TimeTicks::Now as its timebase.
 class CC_EXPORT DelayBasedTimeSource {
  public:
-  static scoped_ptr<DelayBasedTimeSource> Create(
+  static std::unique_ptr<DelayBasedTimeSource> Create(
       base::TimeDelta interval,
       base::SingleThreadTaskRunner* task_runner) {
-    return make_scoped_ptr(new DelayBasedTimeSource(interval, task_runner));
+    return base::WrapUnique(new DelayBasedTimeSource(interval, task_runner));
   }
 
   virtual ~DelayBasedTimeSource();