Replace scoped_ptr with std::unique_ptr in //ui

ui/surface/transport_dib_posix.cc

Index: ui/surface/transport_dib_posix.cc
diff --git a/ui/surface/transport_dib_posix.cc b/ui/surface/transport_dib_posix.cc
index aada735b5305037afff97a56898e83a9f48ad547..da370c96698e87a4aee7381272494c61c1bf07d8 100644
--- a/ui/surface/transport_dib_posix.cc
+++ b/ui/surface/transport_dib_posix.cc
@@ -9,8 +9,9 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
+#include <memory>
+
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "build/build_config.h"
 #include "skia/ext/platform_canvas.h"
@@ -41,7 +42,7 @@ TransportDIB* TransportDIB::Create(size_t size, uint32_t sequence_num) {
 
 // static
 TransportDIB* TransportDIB::Map(Handle handle) {
-  scoped_ptr<TransportDIB> dib(CreateWithHandle(handle));
+  std::unique_ptr<TransportDIB> dib(CreateWithHandle(handle));
   if (!dib->Map())
     return NULL;
   return dib.release();