Convert //ash from scoped_ptr to std::unique_ptr

ash/system/chromeos/brightness/tray_brightness_unittest.cc

Index: ash/system/chromeos/brightness/tray_brightness_unittest.cc
diff --git a/ash/system/chromeos/brightness/tray_brightness_unittest.cc b/ash/system/chromeos/brightness/tray_brightness_unittest.cc
index d58aa7385c829cf7057373fc5f28ba490fe35953..01fcb3a0ef393aba948ef1204a4e5d55044aa22c 100644
--- a/ash/system/chromeos/brightness/tray_brightness_unittest.cc
+++ b/ash/system/chromeos/brightness/tray_brightness_unittest.cc
@@ -4,6 +4,8 @@
 
 #include "ash/system/chromeos/brightness/tray_brightness.h"
 
+#include <memory>
+
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_item.h"
@@ -39,7 +41,7 @@ class TrayBrightnessTest : public test::AshTestBase {
 // Tests that when the default view is initially created, that its
 // BrightnessView is created not visible.
 TEST_F(TrayBrightnessTest, CreateDefaultView) {
-  scoped_ptr<views::View> tray(CreateDefaultView());
+  std::unique_ptr<views::View> tray(CreateDefaultView());
   EXPECT_FALSE(tray->visible());
 }
 
@@ -48,7 +50,7 @@ TEST_F(TrayBrightnessTest, CreateDefaultView) {
 TEST_F(TrayBrightnessTest, CreateDefaultViewDuringMaximizeMode) {
   Shell::GetInstance()->maximize_mode_controller()->
       EnableMaximizeModeWindowManager(true);
-  scoped_ptr<views::View> tray(CreateDefaultView());
+  std::unique_ptr<views::View> tray(CreateDefaultView());
   EXPECT_TRUE(tray->visible());
   Shell::GetInstance()->maximize_mode_controller()->
       EnableMaximizeModeWindowManager(false);
@@ -57,7 +59,7 @@ TEST_F(TrayBrightnessTest, CreateDefaultViewDuringMaximizeMode) {
 // Tests that the enabling of MaximizeMode affects a previously created
 // BrightnessView, changing the visibility.
 TEST_F(TrayBrightnessTest, DefaultViewVisibilityChangesDuringMaximizeMode) {
-  scoped_ptr<views::View> tray(CreateDefaultView());
+  std::unique_ptr<views::View> tray(CreateDefaultView());
   Shell::GetInstance()->maximize_mode_controller()->
       EnableMaximizeModeWindowManager(true);
   EXPECT_TRUE(tray->visible());
@@ -69,7 +71,7 @@ TEST_F(TrayBrightnessTest, DefaultViewVisibilityChangesDuringMaximizeMode) {
 // Tests that when the detailed view is initially created that its
 // BrightnessView is created as visible.
 TEST_F(TrayBrightnessTest, CreateDetailedView) {
-  scoped_ptr<views::View> tray(CreateDetailedView());
+  std::unique_ptr<views::View> tray(CreateDetailedView());
   EXPECT_TRUE(tray->visible());
 }
 
@@ -79,7 +81,7 @@ TEST_F(TrayBrightnessTest, CreateDetailedView) {
 TEST_F(TrayBrightnessTest, CreateDetailedViewDuringMaximizeMode) {
   Shell::GetInstance()->maximize_mode_controller()->
       EnableMaximizeModeWindowManager(true);
-  scoped_ptr<views::View> tray(CreateDetailedView());
+  std::unique_ptr<views::View> tray(CreateDetailedView());
   EXPECT_TRUE(tray->visible());
   Shell::GetInstance()->maximize_mode_controller()->
       EnableMaximizeModeWindowManager(false);
@@ -88,7 +90,7 @@ TEST_F(TrayBrightnessTest, CreateDetailedViewDuringMaximizeMode) {
 // Tests that the enabling of MaximizeMode has no affect on the visibility of a
 // previously created BrightnessView that belongs to a detailed view.
 TEST_F(TrayBrightnessTest, DetailedViewVisibilityChangesDuringMaximizeMode) {
-  scoped_ptr<views::View> tray(CreateDetailedView());
+  std::unique_ptr<views::View> tray(CreateDetailedView());
   Shell::GetInstance()->maximize_mode_controller()->
       EnableMaximizeModeWindowManager(true);
   EXPECT_TRUE(tray->visible());