Stop passing raw pointers to base::Value API in c/b/chromeos and c/b/extensions

chrome/browser/extensions/api/tabs/app_window_controller.cc

Index: chrome/browser/extensions/api/tabs/app_window_controller.cc
diff --git a/chrome/browser/extensions/api/tabs/app_window_controller.cc b/chrome/browser/extensions/api/tabs/app_window_controller.cc
index 6831e346d51ed7271de0274b8c4df91a5500a702..bc8272b841732e5527daa2c849fb421ee18d0b9c 100644
--- a/chrome/browser/extensions/api/tabs/app_window_controller.cc
+++ b/chrome/browser/extensions/api/tabs/app_window_controller.cc
@@ -7,6 +7,7 @@
 #include <memory>
 #include <utility>
 
+#include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/tabs/app_base_window.h"
@@ -56,9 +57,9 @@ AppWindowController::CreateWindowValueWithTabs(
   if (!tab_value)
     return result;
 
-  base::ListValue* tab_list = new base::ListValue();
+  auto tab_list = base::MakeUnique<base::ListValue>();
   tab_list->Append(std::move(tab_value));
-  result->Set(tabs_constants::kTabsKey, tab_list);
+  result->Set(tabs_constants::kTabsKey, std::move(tab_list));
 
   return result;
 }