WTF/std normalization: replace WTF::Vector::last with ::back

third_party/WebKit/Source/core/animation/CompositorAnimationsTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 401 matching lines @@
                             1.0)
           .get());
   EXPECT_FALSE(isCandidateForAnimationOnCompositor(
       m_timing,
       *AnimatableValueKeyframeEffectModel::create(framesMixedProperties)));
 }
 
 TEST_F(AnimationCompositorAnimationsTest, AnimatedBoundingBox) {
   Vector<TransformOperations> transformVector;
   transformVector.append(TransformOperations());
-  transformVector.last().operations().append(
+  transformVector.back().operations().append(
       TranslateTransformOperation::create(Length(0, Fixed), Length(0, Fixed),
                                           0.0,
                                           TransformOperation::Translate3D));
   transformVector.append(TransformOperations());
-  transformVector.last().operations().append(
+  transformVector.back().operations().append(
       TranslateTransformOperation::create(Length(200, Fixed),
                                           Length(200, Fixed), 0.0,
                                           TransformOperation::Translate3D));
   std::unique_ptr<AnimatableValueKeyframeVector> frames =
       createCompositableTransformKeyframeVector(transformVector);
   FloatBox bounds;
   EXPECT_TRUE(getAnimationBounds(
       bounds, *AnimatableValueKeyframeEffectModel::create(*frames), 0, 1));
   EXPECT_EQ(FloatBox(0.0f, 0.f, 0.0f, 200.0f, 200.0f, 0.0f), bounds);
   bounds = FloatBox();
   EXPECT_TRUE(getAnimationBounds(
       bounds, *AnimatableValueKeyframeEffectModel::create(*frames), -1, 1));
   EXPECT_EQ(FloatBox(-200.0f, -200.0, 0.0, 400.0f, 400.0f, 0.0f), bounds);
   transformVector.append(TransformOperations());
-  transformVector.last().operations().append(
+  transformVector.back().operations().append(
       TranslateTransformOperation::create(Length(-300, Fixed),
                                           Length(-400, Fixed), 1.0f,
                                           TransformOperation::Translate3D));
   bounds = FloatBox();
   frames = createCompositableTransformKeyframeVector(transformVector);
   EXPECT_TRUE(getAnimationBounds(
       bounds, *AnimatableValueKeyframeEffectModel::create(*frames), 0, 1));
   EXPECT_EQ(FloatBox(-300.0f, -400.f, 0.0f, 500.0f, 600.0f, 1.0f), bounds);
   bounds = FloatBox();
   EXPECT_TRUE(getAnimationBounds(
@@ skipping 791 matching lines @@
   simulateFrame(1.);
 
   element->setLayoutObject(nullptr);
   LayoutObjectProxy::dispose(layoutObject);
 
   ThreadState::current()->collectAllGarbage();
   EXPECT_TRUE(element->elementAnimations()->animations().isEmpty());
 }
 
 }  // namespace blink