Use rvalue reference instead of extensions::ListBuilder::Pass()

C++ 11 enables rvalue reference with std::move() so that removing legacy ListBuilder::Pass() stuff.

TEST=unit_tests
BUG=563649
TBR=thakis@chromium.org

Review URL: https://codereview.chromium.org/1497753002

Cr-Commit-Position: refs/heads/master@{#363970}

2 files changed, 23 insertions, 19 deletions

diff --git a/extensions/common/features/base_feature_provider_unittest.cc b/extensions/common/features/base_feature_provider_unittest.cc
index dc41366..30850a3 100644
--- a/extensions/common/features/base_feature_provider_unittest.cc
+++ b/extensions/common/features/base_feature_provider_unittest.cc
@@ -7,6 +7,7 @@
 #include <algorithm>
 #include <set>
 #include <string>
+#include <utility>
 
 #include "base/stl_util.h"
 #include "extensions/common/extension_builder.h"
@@ -99,16 +100,16 @@ TEST(BaseFeatureProviderTest, PermissionFeatureAvailability) {
 
   scoped_refptr<const Extension> app =
       ExtensionBuilder()
-          .SetManifest(DictionaryBuilder()
-                           .Set("name", "test app")
-                           .Set("version", "1")
-                           .Set("app",
-                                DictionaryBuilder().Set(
-                                    "background",
-                                    DictionaryBuilder().Set(
-                                        "scripts",
-                                        ListBuilder().Append("background.js"))))
-                           .Set("permissions", ListBuilder().Append("power")))
+          .SetManifest(
+              DictionaryBuilder()
+                  .Set("name", "test app")
+                  .Set("version", "1")
+                  .Set("app", DictionaryBuilder().Set(
+                                  "background",
+                                  DictionaryBuilder().Set(
+                                      "scripts", std::move(ListBuilder().Append(
+                                                     "background.js")))))
+                  .Set("permissions", std::move(ListBuilder().Append("power"))))
           .Build();
   ASSERT_TRUE(app.get());
   ASSERT_TRUE(app->is_platform_app());
diff --git a/extensions/common/features/complex_feature_unittest.cc b/extensions/common/features/complex_feature_unittest.cc
index 54355aa..d06a15a 100644
--- a/extensions/common/features/complex_feature_unittest.cc
+++ b/extensions/common/features/complex_feature_unittest.cc
@@ -5,6 +5,7 @@
 #include "extensions/common/features/complex_feature.h"
 
 #include <string>
+#include <utility>
 
 #include "extensions/common/features/simple_feature.h"
 #include "extensions/common/manifest.h"
@@ -23,18 +24,19 @@ TEST(ComplexFeatureTest, MultipleRulesWhitelist) {
   scoped_ptr<SimpleFeature> simple_feature(new SimpleFeature);
   scoped_ptr<base::DictionaryValue> rule(
       DictionaryBuilder()
-      .Set("whitelist", ListBuilder().Append(kIdFoo))
-      .Set("extension_types", ListBuilder()
-          .Append("extension")).Build());
+          .Set("whitelist", std::move(ListBuilder().Append(kIdFoo)))
+          .Set("extension_types", std::move(ListBuilder().Append("extension")))
+          .Build());
   simple_feature->Parse(rule.get());
   features->push_back(simple_feature.Pass());
 
   // Rule: "legacy_packaged_app", whitelist "bar".
   simple_feature.reset(new SimpleFeature);
   rule = DictionaryBuilder()
-      .Set("whitelist", ListBuilder().Append(kIdBar))
-      .Set("extension_types", ListBuilder()
-          .Append("legacy_packaged_app")).Build();
+             .Set("whitelist", std::move(ListBuilder().Append(kIdBar)))
+             .Set("extension_types",
+                  std::move(ListBuilder().Append("legacy_packaged_app")))
+             .Build();
   simple_feature->Parse(rule.get());
   features->push_back(simple_feature.Pass());
 
@@ -84,8 +86,8 @@ TEST(ComplexFeatureTest, Dependencies) {
   scoped_ptr<SimpleFeature> simple_feature(new SimpleFeature);
   scoped_ptr<base::DictionaryValue> rule =
       DictionaryBuilder()
-          .Set("dependencies",
-               ListBuilder().Append("manifest:content_security_policy"))
+          .Set("dependencies", std::move(ListBuilder().Append(
+                                   "manifest:content_security_policy")))
           .Build();
   simple_feature->Parse(rule.get());
   features->push_back(simple_feature.Pass());
@@ -93,7 +95,8 @@ TEST(ComplexFeatureTest, Dependencies) {
   // Rule which depends on an platform-app-only feature (serial).
   simple_feature.reset(new SimpleFeature);
   rule = DictionaryBuilder()
-             .Set("dependencies", ListBuilder().Append("permission:serial"))
+             .Set("dependencies",
+                  std::move(ListBuilder().Append("permission:serial")))
              .Build();
   simple_feature->Parse(rule.get());
   features->push_back(simple_feature.Pass());