Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/common/extension_builder.cc

Index: extensions/common/extension_builder.cc
diff --git a/extensions/common/extension_builder.cc b/extensions/common/extension_builder.cc
index 905ba6b2dfa2edcc27f64bf6d21c822c17f60d42..e00db3cb3dbc4f1b01e4f4a86b1ac30b34915c68 100644
--- a/extensions/common/extension_builder.cc
+++ b/extensions/common/extension_builder.cc
@@ -56,13 +56,13 @@ ExtensionBuilder& ExtensionBuilder::SetLocation(Manifest::Location location) {
 }
 
 ExtensionBuilder& ExtensionBuilder::SetManifest(
-    scoped_ptr<base::DictionaryValue> manifest) {
+    std::unique_ptr<base::DictionaryValue> manifest) {
   manifest_ = std::move(manifest);
   return *this;
 }
 
 ExtensionBuilder& ExtensionBuilder::MergeManifest(
-    scoped_ptr<base::DictionaryValue> manifest) {
+    std::unique_ptr<base::DictionaryValue> manifest) {
   manifest_->MergeDictionary(manifest.get());
   return *this;
 }