Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/browser/devtools/remote_debugging_server.h

Index: chromecast/browser/devtools/remote_debugging_server.h
diff --git a/chromecast/browser/devtools/remote_debugging_server.h b/chromecast/browser/devtools/remote_debugging_server.h
index 216655ef482aee772c1c7e0116f468aa7bfea94e..84fc34d6e7e4a27b005f45b512e0e4fc56a9af6b 100644
--- a/chromecast/browser/devtools/remote_debugging_server.h
+++ b/chromecast/browser/devtools/remote_debugging_server.h
@@ -7,8 +7,9 @@
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/prefs/pref_member.h"
 
 namespace devtools_http_handler {
@@ -29,7 +30,8 @@ class RemoteDebuggingServer {
   // Called when pref_enabled_ is changed.
   void OnEnabledChanged();
 
-  scoped_ptr<devtools_http_handler::DevToolsHttpHandler> devtools_http_handler_;
+  std::unique_ptr<devtools_http_handler::DevToolsHttpHandler>
+      devtools_http_handler_;
 
   BooleanPrefMember pref_enabled_;
   uint16_t port_;