Convert //extensions/renderer from scoped_ptr to std::unique_ptr

extensions/renderer/worker_script_context_set.cc

Index: extensions/renderer/worker_script_context_set.cc
diff --git a/extensions/renderer/worker_script_context_set.cc b/extensions/renderer/worker_script_context_set.cc
index a05fdbc77c61db42b6e8269e918344831e7a9412..c928351985d4904592b4400ea90a0d301014d4f1 100644
--- a/extensions/renderer/worker_script_context_set.cc
+++ b/extensions/renderer/worker_script_context_set.cc
@@ -33,7 +33,7 @@ WorkerScriptContextSet::WorkerScriptContextSet() {}
 
 WorkerScriptContextSet::~WorkerScriptContextSet() {}
 
-void WorkerScriptContextSet::Insert(scoped_ptr<ScriptContext> context) {
+void WorkerScriptContextSet::Insert(std::unique_ptr<ScriptContext> context) {
   DCHECK_GT(content::WorkerThread::GetCurrentId(), 0)
       << "Must be called on a worker thread";
   ContextVector* contexts = contexts_tls_.Get();