Animations: Allow document animation timelines to have a playback rate

Source/core/animation/AnimationTimelineTest.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 168 matching lines @@
     EXPECT_EQ(100, timeline->currentTimeInternal());
     EXPECT_EQ(100, timeline->currentTimeInternal(isNull));
     EXPECT_FALSE(isNull);
 
     document->animationClock().updateTime(200);
     EXPECT_EQ(200, timeline->currentTimeInternal());
     EXPECT_EQ(200, timeline->currentTimeInternal(isNull));
     EXPECT_FALSE(isNull);
 }
 
+TEST_F(AnimationAnimationTimelineTest, PlaybackRateForInspectorNormal)
+{
+    timeline = AnimationTimeline::create(document.get());
+    bool isNull;
+
+    document->animationClock().updateTime(100);
+    timeline->setPlaybackRate(1.0);
+    EXPECT_EQ(100, timeline->currentTimeInternal());
+    EXPECT_EQ(100, timeline->currentTimeInternal(isNull));
+    EXPECT_FALSE(isNull);
+
+    document->animationClock().updateTime(200);
+    EXPECT_EQ(200, timeline->currentTimeInternal());
+    EXPECT_EQ(200, timeline->currentTimeInternal(isNull));
+    EXPECT_FALSE(isNull);
+}
+
+TEST_F(AnimationAnimationTimelineTest, PlaybackRateForInspectorPause)
+{
+    timeline = AnimationTimeline::create(document.get());
+    bool isNull;
+
+    document->animationClock().updateTime(100);
+    EXPECT_EQ(100, timeline->currentTimeInternal());
+    EXPECT_EQ(100, timeline->currentTimeInternal(isNull));
+    EXPECT_FALSE(isNull);
+
+    timeline->setPlaybackRate(0.0);
+    document->animationClock().updateTime(200);
+    EXPECT_EQ(100, timeline->currentTimeInternal());
+    EXPECT_EQ(100, timeline->currentTimeInternal(isNull));
+
+    timeline->setPlaybackRate(1.0);
+    document->animationClock().updateTime(400);
+    EXPECT_EQ(300, timeline->currentTimeInternal());
+    EXPECT_EQ(300, timeline->currentTimeInternal(isNull));
+
+    EXPECT_FALSE(isNull);
+}
+
+TEST_F(AnimationAnimationTimelineTest, PlaybackRateForInspectorSlow)
+{
+    timeline = AnimationTimeline::create(document.get());
+    bool isNull;
+
+    document->animationClock().updateTime(100);
+    EXPECT_EQ(100, timeline->currentTimeInternal());
+    EXPECT_EQ(100, timeline->currentTimeInternal(isNull));
+    EXPECT_FALSE(isNull);
+
+    timeline->setPlaybackRate(0.5);
+    document->animationClock().updateTime(300);
+    EXPECT_EQ(200, timeline->currentTimeInternal());
+    EXPECT_EQ(200, timeline->currentTimeInternal(isNull));
+
+    timeline->setPlaybackRate(1.0);
+    document->animationClock().updateTime(400);
+    EXPECT_EQ(300, timeline->currentTimeInternal());
+    EXPECT_EQ(300, timeline->currentTimeInternal(isNull));
+
+    EXPECT_FALSE(isNull);
+}
+
+TEST_F(AnimationAnimationTimelineTest, PlaybackRateForInspectorFast)
+{
+    timeline = AnimationTimeline::create(document.get());
+    bool isNull;
+
+    document->animationClock().updateTime(100);
+    EXPECT_EQ(100, timeline->currentTimeInternal());
+    EXPECT_EQ(100, timeline->currentTimeInternal(isNull));
+    EXPECT_FALSE(isNull);
+
+    timeline->setPlaybackRate(2);
+    document->animationClock().updateTime(300);
+    EXPECT_EQ(500, timeline->currentTimeInternal());
+    EXPECT_EQ(500, timeline->currentTimeInternal(isNull));
+
+    timeline->setPlaybackRate(1.0);
+    document->animationClock().updateTime(400);
+    EXPECT_EQ(600, timeline->currentTimeInternal());
+    EXPECT_EQ(600, timeline->currentTimeInternal(isNull));
+
+    EXPECT_FALSE(isNull);
+}
+
 TEST_F(AnimationAnimationTimelineTest, PauseForTesting)
 {
     float seekTime = 1;
     timing.fillMode = Timing::FillModeForwards;
     RefPtrWillBeRawPtr<Animation> anim1 = Animation::create(element.get(), AnimatableValueKeyframeEffectModel::create(AnimatableValueKeyframeVector()), timing);
     RefPtrWillBeRawPtr<Animation> anim2  = Animation::create(element.get(), AnimatableValueKeyframeEffectModel::create(AnimatableValueKeyframeVector()), timing);
     AnimationPlayer* player1 = timeline->play(anim1.get());
     AnimationPlayer* player2 = timeline->play(anim2.get());
     timeline->pauseAnimationsForTesting(seekTime);
 
@@ skipping 40 matching lines @@
 
 TEST_F(AnimationAnimationTimelineTest, UseAnimationPlayerAfterTimelineDeref)
 {
     RefPtrWillBeRawPtr<AnimationPlayer> player = timeline->createAnimationPlayer(0);
     timeline.clear();
     // Test passes if this does not crash.
     player->setStartTime(0);
 }
 
 }