Replaced PassRefPtr copies with moves in Source/core.

third_party/WebKit/Source/core/css/resolver/FontBuilder.cpp

Index: third_party/WebKit/Source/core/css/resolver/FontBuilder.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/FontBuilder.cpp b/third_party/WebKit/Source/core/css/resolver/FontBuilder.cpp
index 38cade9a2578b7d83ce3d477028fdfb74690e434..ae65491ca188ca721bc78b7cfbc1528e6b1ab80a 100644
--- a/third_party/WebKit/Source/core/css/resolver/FontBuilder.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/FontBuilder.cpp
@@ -145,7 +145,7 @@ void FontBuilder::setLocale(PassRefPtr<const LayoutLocale> locale)
 {
     set(PropertySetFlag::Locale);
 
-    m_fontDescription.setLocale(locale);
+    m_fontDescription.setLocale(std::move(locale));
 }
 
 void FontBuilder::setStyle(FontStyle italic)
@@ -201,7 +201,7 @@ void FontBuilder::setFeatureSettings(PassRefPtr<FontFeatureSettings> settings)
 {
     set(PropertySetFlag::FeatureSettings);
 
-    m_fontDescription.setFeatureSettings(settings);
+    m_fontDescription.setFeatureSettings(std::move(settings));
 }
 
 void FontBuilder::setFamilyDescription(FontDescription& fontDescription, const FontDescription::FamilyDescription& familyDescription)