Adds in-out easing type.

chrome/browser/android/vr_shell/ui_scene.cc

Index: chrome/browser/android/vr_shell/ui_scene.cc
diff --git a/chrome/browser/android/vr_shell/ui_scene.cc b/chrome/browser/android/vr_shell/ui_scene.cc
index 020e307e94c255163fd4d3d8fac6f71025c993ce..80c4d5bb4e3b0c322d58f7d795e7b8d8b75926f7 100644
--- a/chrome/browser/android/vr_shell/ui_scene.cc
+++ b/chrome/browser/android/vr_shell/ui_scene.cc
@@ -150,7 +150,7 @@ std::unique_ptr<easing::Easing> ParseEasing(
 
   switch (easingType) {
     case easing::EasingType::LINEAR: {
-      result.reset(new easing::Linear());
+      result = base::MakeUnique<easing::Linear>();
       break;
     }
     case easing::EasingType::CUBICBEZIER: {
@@ -159,19 +159,25 @@ std::unique_ptr<easing::Easing> ParseEasing(
       CHECK(dict.GetDouble("p1y", &p1y));
       CHECK(dict.GetDouble("p2x", &p2x));
       CHECK(dict.GetDouble("p2y", &p2y));
-      result.reset(new easing::CubicBezier(p1x, p1y, p2x, p2y));
+      result = base::MakeUnique<easing::CubicBezier>(p1x, p1y, p2x, p2y);
       break;
     }
     case easing::EasingType::EASEIN: {
       double pow;
       CHECK(dict.GetDouble("pow", &pow));
-      result.reset(new easing::EaseIn(pow));
+      result = base::MakeUnique<easing::EaseIn>(pow);
       break;
     }
     case easing::EasingType::EASEOUT: {
       double pow;
       CHECK(dict.GetDouble("pow", &pow));
-      result.reset(new easing::EaseOut(pow));
+      result = base::MakeUnique<easing::EaseOut>(pow);
+      break;
+    }
+    case easing::EasingType::EASEINOUT: {
+      double pow;
+      CHECK(dict.GetDouble("pow", &pow));
+      result = base::MakeUnique<easing::EaseInOut>(pow);
       break;
     }
   }
@@ -227,7 +233,7 @@ void UiScene::AddUiElementFromDict(const base::DictionaryValue& dict) {
   CHECK(dict.GetInteger("id", &id));
   CHECK_EQ(GetUiElementById(id), nullptr);
 
-  std::unique_ptr<ContentRectangle> element(new ContentRectangle);
+  auto element = base::MakeUnique<ContentRectangle>();
   element->id = id;
 
   ApplyDictToElement(dict, element.get());
@@ -302,10 +308,9 @@ void UiScene::AddAnimationFromDict(const base::DictionaryValue& dict,
 
   ContentRectangle* element = GetUiElementById(element_id);
   CHECK_NE(element, nullptr);
-  element->animations.emplace_back(std::unique_ptr<Animation>(
-      new Animation(
-          animation_id, static_cast<Animation::Property>(property),
-          std::move(easing), from, to, start, duration)));
+  element->animations.emplace_back(base::MakeUnique<Animation>(
+      animation_id, static_cast<Animation::Property>(property),
+      std::move(easing), from, to, start, duration));
 }
 
 void UiScene::RemoveAnimation(int element_id, int animation_id) {