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

cc/debug/traced_display_item_list.h

Index: cc/debug/traced_display_item_list.h
diff --git a/cc/debug/traced_display_item_list.h b/cc/debug/traced_display_item_list.h
index 71cf66498beb20519b66436fe0454e224e8517ba..50733485e6f5b74f1f29b29686ce95ffb7aaab41 100644
--- a/cc/debug/traced_display_item_list.h
+++ b/cc/debug/traced_display_item_list.h
@@ -5,11 +5,11 @@
 #ifndef CC_DEBUG_TRACED_DISPLAY_ITEM_LIST_H_
 #define CC_DEBUG_TRACED_DISPLAY_ITEM_LIST_H_
 
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/debug/traced_value.h"
 
@@ -20,10 +20,10 @@ class DisplayItemList;
 class TracedDisplayItemList
     : public base::trace_event::ConvertableToTraceFormat {
  public:
-  static scoped_ptr<ConvertableToTraceFormat> AsTraceableDisplayItemList(
+  static std::unique_ptr<ConvertableToTraceFormat> AsTraceableDisplayItemList(
       scoped_refptr<const DisplayItemList> list,
       bool include_items) {
-    return scoped_ptr<ConvertableToTraceFormat>(
+    return std::unique_ptr<ConvertableToTraceFormat>(
         new TracedDisplayItemList(list, include_items));
   }
   void AppendAsTraceFormat(std::string* out) const override;