Use rvalue reference instead of ExtensionBuilder::pass()

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 f993e9467ac89758efc2c1e50f0fe50c82d2d4a6..b573128f16deec660570b1a74146b7a7c54538f3 100644
--- a/extensions/common/extension_builder.cc
+++ b/extensions/common/extension_builder.cc
@@ -4,6 +4,8 @@
 
 #include "extensions/common/extension_builder.h"
 
+#include <utility>
+
 #include "extensions/common/extension.h"
 
 namespace extensions {
@@ -14,6 +16,22 @@ ExtensionBuilder::ExtensionBuilder()
 }
 ExtensionBuilder::~ExtensionBuilder() {}
 
+ExtensionBuilder::ExtensionBuilder(ExtensionBuilder&& other)
+    : path_(std::move(other.path_)),
+      location_(other.location_),
+      manifest_(std::move(other.manifest_)),
+      flags_(other.flags_),
+      id_(std::move(other.id_)) {}
+
+ExtensionBuilder& ExtensionBuilder::operator=(ExtensionBuilder&& other) {
+  path_ = std::move(other.path_);
+  location_ = other.location_;
+  manifest_ = std::move(other.manifest_);
+  flags_ = other.flags_;
+  id_ = std::move(other.id_);
+  return *this;
+}
+
 scoped_refptr<Extension> ExtensionBuilder::Build() {
   std::string error;
   scoped_refptr<Extension> extension = Extension::Create(