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

chrome/browser/chromeos/system_logs/touch_log_source_x11.cc

Index: chrome/browser/chromeos/system_logs/touch_log_source_x11.cc
diff --git a/chrome/browser/chromeos/system_logs/touch_log_source_x11.cc b/chrome/browser/chromeos/system_logs/touch_log_source_x11.cc
index d2d9fa686f3ed87ee5baf13b145b845b721e6fb8..5cf40d1bb7e9edb34618eeb38225456949a6c1b5 100644
--- a/chrome/browser/chromeos/system_logs/touch_log_source_x11.cc
+++ b/chrome/browser/chromeos/system_logs/touch_log_source_x11.cc
@@ -21,7 +21,7 @@ namespace {
 const char kHUDLogDataKey[] = "hud_log";
 
 void GetTouchLogsX11(system_logs::SystemLogsResponse* response) {
-  scoped_ptr<base::DictionaryValue> dictionary =
+  std::unique_ptr<base::DictionaryValue> dictionary =
       ash::TouchHudDebug::GetAllAsDictionary();
   if (!dictionary->empty()) {
     std::string touch_log;