Introduce KeyframeEffectReadOnly interface

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

Index: third_party/WebKit/Source/core/animation/AnimationStackTest.cpp
diff --git a/third_party/WebKit/Source/core/animation/AnimationStackTest.cpp b/third_party/WebKit/Source/core/animation/AnimationStackTest.cpp
index 58cd4cb461bd9ccfda72e9708851fb2200f85704..e9ed686046f042ef187058b5998dc61db72405e4 100644
--- a/third_party/WebKit/Source/core/animation/AnimationStackTest.cpp
+++ b/third_party/WebKit/Source/core/animation/AnimationStackTest.cpp
@@ -8,7 +8,9 @@
 #include "core/animation/CompositorPendingAnimations.h"
 #include "core/animation/DocumentTimeline.h"
 #include "core/animation/ElementAnimations.h"
+#include "core/animation/KeyframeEffect.h"
 #include "core/animation/KeyframeEffectModel.h"
+#include "core/animation/KeyframeEffectReadOnly.h"
 #include "core/animation/LegacyStyleInterpolation.h"
 #include "core/animation/animatable/AnimatableDouble.h"
 #include "core/testing/DummyPageHolder.h"
@@ -91,7 +93,7 @@ TEST_F(AnimationAnimationStackTest, ElementAnimationsSorted)
     play(makeKeyframeEffect(makeEffectModel(CSSPropertyFontSize, AnimatableDouble::create(1))), 10);
     play(makeKeyframeEffect(makeEffectModel(CSSPropertyFontSize, AnimatableDouble::create(2))), 15);
     play(makeKeyframeEffect(makeEffectModel(CSSPropertyFontSize, AnimatableDouble::create(3))), 5);
-    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffect::DefaultPriority);
+    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(1u, result.size());
     EXPECT_TRUE(interpolationValue(result, CSSPropertyFontSize)->equals(AnimatableDouble::create(3).get()));
 }
@@ -105,7 +107,7 @@ TEST_F(AnimationAnimationStackTest, NewAnimations)
     InertEffect* inert2 = makeInertEffect(makeEffectModel(CSSPropertyZIndex, AnimatableDouble::create(4)));
     newAnimations.append(inert1);
     newAnimations.append(inert2);
-    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), &newAnimations, 0, KeyframeEffect::DefaultPriority);
+    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), &newAnimations, 0, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(2u, result.size());
     EXPECT_TRUE(interpolationValue(result, CSSPropertyFontSize)->equals(AnimatableDouble::create(3).get()));
     EXPECT_TRUE(interpolationValue(result, CSSPropertyZIndex)->equals(AnimatableDouble::create(4).get()));
@@ -117,7 +119,7 @@ TEST_F(AnimationAnimationStackTest, CancelledAnimations)
     Animation* animation = play(makeKeyframeEffect(makeEffectModel(CSSPropertyFontSize, AnimatableDouble::create(1))), 0);
     cancelledAnimations.add(animation);
     play(makeKeyframeEffect(makeEffectModel(CSSPropertyZIndex, AnimatableDouble::create(2))), 0);
-    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, &cancelledAnimations, KeyframeEffect::DefaultPriority);
+    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, &cancelledAnimations, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(1u, result.size());
     EXPECT_TRUE(interpolationValue(result, CSSPropertyZIndex)->equals(AnimatableDouble::create(2).get()));
 }
@@ -125,12 +127,12 @@ TEST_F(AnimationAnimationStackTest, CancelledAnimations)
 TEST_F(AnimationAnimationStackTest, ClearedEffectsRemoved)
 {
     Animation* animation = play(makeKeyframeEffect(makeEffectModel(CSSPropertyFontSize, AnimatableDouble::create(1))), 10);
-    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffect::DefaultPriority);
+    ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(1u, result.size());
     EXPECT_TRUE(interpolationValue(result, CSSPropertyFontSize)->equals(AnimatableDouble::create(1).get()));
 
     animation->setEffect(0);
-    result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffect::DefaultPriority);
+    result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(0u, result.size());
 }
 
@@ -144,28 +146,28 @@ TEST_F(AnimationAnimationStackTest, ForwardsFillDiscarding)
 
     updateTimeline(11);
     ThreadState::current()-> collectAllGarbage();
-    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffect::DefaultPriority);
+    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(1u, interpolations.size());
     EXPECT_TRUE(interpolationValue(interpolations, CSSPropertyFontSize)->equals(AnimatableDouble::create(3).get()));
     EXPECT_EQ(3u, sampledEffectCount());
 
     updateTimeline(13);
     ThreadState::current()-> collectAllGarbage();
-    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffect::DefaultPriority);
+    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(1u, interpolations.size());
     EXPECT_TRUE(interpolationValue(interpolations, CSSPropertyFontSize)->equals(AnimatableDouble::create(3).get()));
     EXPECT_EQ(3u, sampledEffectCount());
 
     updateTimeline(15);
     ThreadState::current()-> collectAllGarbage();
-    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffect::DefaultPriority);
+    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(1u, interpolations.size());
     EXPECT_TRUE(interpolationValue(interpolations, CSSPropertyFontSize)->equals(AnimatableDouble::create(3).get()));
     EXPECT_EQ(2u, sampledEffectCount());
 
     updateTimeline(17);
     ThreadState::current()-> collectAllGarbage();
-    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffect::DefaultPriority);
+    interpolations = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), nullptr, nullptr, KeyframeEffectReadOnly::DefaultPriority);
     EXPECT_EQ(1u, interpolations.size());
     EXPECT_TRUE(interpolationValue(interpolations, CSSPropertyFontSize)->equals(AnimatableDouble::create(3).get()));
     EXPECT_EQ(1u, sampledEffectCount());