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

cc/playback/display_item_list.h

Index: cc/playback/display_item_list.h
diff --git a/cc/playback/display_item_list.h b/cc/playback/display_item_list.h
index 5d33d24795a34a44ae17b6dfe577d22a7bf881c2..4588b03d0504d49723d330d6ca7be73f98e0eac7 100644
--- a/cc/playback/display_item_list.h
+++ b/cc/playback/display_item_list.h
@@ -6,12 +6,13 @@
 #define CC_PLAYBACK_DISPLAY_ITEM_LIST_H_
 
 #include <stddef.h>
+
+#include <memory>
 #include <utility>
 
 #include "base/gtest_prod_util.h"
 #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/base/cc_export.h"
 #include "cc/base/contiguous_container.h"
@@ -98,7 +99,7 @@ class CC_EXPORT DisplayItemList
 
   bool RetainsIndividualDisplayItems() const;
 
-  scoped_ptr<base::trace_event::ConvertableToTraceFormat> AsValue(
+  std::unique_ptr<base::trace_event::ConvertableToTraceFormat> AsValue(
       bool include_items) const;
 
   void EmitTraceSnapshot() const;
@@ -128,7 +129,7 @@ class CC_EXPORT DisplayItemList
   std::vector<gfx::Rect> visual_rects_;
   sk_sp<SkPicture> picture_;
 
-  scoped_ptr<SkPictureRecorder> recorder_;
+  std::unique_ptr<SkPictureRecorder> recorder_;
   skia::RefPtr<SkCanvas> canvas_;
   const DisplayItemListSettings settings_;
   bool retain_individual_display_items_;