Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/app_list/app_list_positioner_unittest.cc

Index: chrome/browser/ui/app_list/app_list_positioner_unittest.cc
diff --git a/chrome/browser/ui/app_list/app_list_positioner_unittest.cc b/chrome/browser/ui/app_list/app_list_positioner_unittest.cc
index 12697bae6e3a0816cfe7a790c42e481e341d9510..60e4a3393fc0a0c1c3c67679001773fd72cae605 100644
--- a/chrome/browser/ui/app_list/app_list_positioner_unittest.cc
+++ b/chrome/browser/ui/app_list/app_list_positioner_unittest.cc
@@ -4,7 +4,8 @@
 
 #include "chrome/browser/ui/app_list/app_list_positioner.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
@@ -115,7 +116,7 @@ class AppListPositionerUnitTest : public testing::Test {
 
  private:
   gfx::Display display_;
-  scoped_ptr<AppListPositioner> positioner_;
+  std::unique_ptr<AppListPositioner> positioner_;
   gfx::Point cursor_;
 };