Convert //content from scoped_ptr to std::unique_ptr

content/app/content_main.cc

Index: content/app/content_main.cc
diff --git a/content/app/content_main.cc b/content/app/content_main.cc
index 77277ff64800ec3dda88b311b032a674d55ce490..b983bf8191d9d1e59e27d2a9250569d8fc793751 100644
--- a/content/app/content_main.cc
+++ b/content/app/content_main.cc
@@ -4,13 +4,14 @@
 
 #include "content/public/app/content_main.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "content/public/app/content_main_runner.h"
 
 namespace content {
 
 int ContentMain(const ContentMainParams& params) {
-  scoped_ptr<ContentMainRunner> main_runner(ContentMainRunner::Create());
+  std::unique_ptr<ContentMainRunner> main_runner(ContentMainRunner::Create());
 
   int exit_code = main_runner->Initialize(params);
   if (exit_code >= 0)