Convert //ppapi to use std::unique_ptr

ppapi/shared_impl/compositor_layer_data.h

Index: ppapi/shared_impl/compositor_layer_data.h
diff --git a/ppapi/shared_impl/compositor_layer_data.h b/ppapi/shared_impl/compositor_layer_data.h
index 86a5b59225c78694912437357bf2defa50fc8681..179b69308c7d708c179cca59869b4555f471007c 100644
--- a/ppapi/shared_impl/compositor_layer_data.h
+++ b/ppapi/shared_impl/compositor_layer_data.h
@@ -8,8 +8,9 @@
 #include <stdint.h>
 #include <string.h>
 
+#include <memory>
+
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/common/sync_token.h"
 #include "ppapi/c/ppb_compositor_layer.h"
@@ -112,9 +113,9 @@ struct PPAPI_SHARED_EXPORT CompositorLayerData {
   const CompositorLayerData& operator=(const CompositorLayerData& other);
 
   LayerCommon common;
-  scoped_ptr<ColorLayer> color;
-  scoped_ptr<TextureLayer> texture;
-  scoped_ptr<ImageLayer> image;
+  std::unique_ptr<ColorLayer> color;
+  std::unique_ptr<TextureLayer> texture;
+  std::unique_ptr<ImageLayer> image;
 };
 
 }  // namespace ppapi