Make the web-animations engine use the passed in blink::WebFrameTime values.

Source/core/animation/AnimationClockTest.cpp

Index: Source/core/animation/AnimationClockTest.cpp
diff --git a/Source/core/animation/AnimationClockTest.cpp b/Source/core/animation/AnimationClockTest.cpp
index 89412585331072bc0e902da99d193b2fcdad4e71..9d973dad544e14ad93ef0294dd2d65e431531e56 100644
--- a/Source/core/animation/AnimationClockTest.cpp
+++ b/Source/core/animation/AnimationClockTest.cpp
@@ -41,103 +41,86 @@ namespace {
 class AnimationAnimationClockTest : public ::testing::Test {
 public:
     AnimationAnimationClockTest()
-        : animationClock(mockTimeFunction)
+        : animationClock()
     { }
+
 protected:
-    virtual void SetUp()
+    blink::WebFrameTime createFrameTime(double currentFrameMonotonic, double nextFrameMonotonic)
     {
-        mockTime = 0;
-        animationClock.resetTimeForTesting();
+        // AnimationClock doesn't use the first two fields (lastFrameTime and
+        // renderDeadline).
+        return blink::WebFrameTime(
+            blink::WebFrameTime::Undefined(),
+            blink::WebFrameTime::Undefined(),
+            currentFrameMonotonic,
+            nextFrameMonotonic);
     }
 
-    static double mockTimeFunction()
+    virtual void SetUp()
     {
-        return mockTime;
+        animationClock.clearTimeForTesting();
+        animationClock.updateTime(createFrameTime(0, 0));
     }
 
-    static double mockTime;
     AnimationClock animationClock;
 };
 
-double AnimationAnimationClockTest::mockTime;
-
 TEST_F(AnimationAnimationClockTest, TimeIsGreaterThanZeroForUnitTests)
 {
     AnimationClock clock;
+    clock.resetTimeForTesting();
+
     // unit tests outside core/animation shouldn't need to do anything to get
     // a non-zero currentTime().
+    double lastTime = clock.currentTime();
     EXPECT_GT(clock.currentTime(), 0);
+
+    clock.tickTimeForTesting();
+    EXPECT_GT(clock.currentTime(), lastTime);
 }
 
 TEST_F(AnimationAnimationClockTest, TimeDoesNotChange)
 {
-    animationClock.updateTime(100);
+    animationClock.updateTime(createFrameTime(100, 200));
     EXPECT_EQ(100, animationClock.currentTime());
     EXPECT_EQ(100, animationClock.currentTime());
 }
 
 TEST_F(AnimationAnimationClockTest, TimeAdvancesWhenUpdated)
 {
-    animationClock.updateTime(100);
+    animationClock.updateTime(createFrameTime(100, 200));
     EXPECT_EQ(100, animationClock.currentTime());
 
-    animationClock.updateTime(200);
+    animationClock.updateTime(createFrameTime(200, 300));
     EXPECT_EQ(200, animationClock.currentTime());
 }
 
 TEST_F(AnimationAnimationClockTest, TimeAdvancesToTaskTime)
 {
-    animationClock.updateTime(100);
+    animationClock.updateTime(createFrameTime(100, 150));
     EXPECT_EQ(100, animationClock.currentTime());
 
-    mockTime = 150;
     AnimationClock::notifyTaskStart();
-    EXPECT_GE(animationClock.currentTime(), mockTime);
-}
-
-TEST_F(AnimationAnimationClockTest, TimeAdvancesToTaskTimeOnlyWhenRequired)
-{
-    animationClock.updateTime(100);
-    EXPECT_EQ(100, animationClock.currentTime());
+    EXPECT_EQ(animationClock.currentTime(), 150);
 
     AnimationClock::notifyTaskStart();
-    animationClock.updateTime(125);
-    EXPECT_EQ(125, animationClock.currentTime());
+    EXPECT_EQ(animationClock.currentTime(), 150);
 }
 
 TEST_F(AnimationAnimationClockTest, UpdateTimeIsMonotonic)
 {
-    animationClock.updateTime(100);
+    animationClock.updateTime(createFrameTime(100, 150));
     EXPECT_EQ(100, animationClock.currentTime());
+#ifndef NDEBUG
+    EXPECT_DEATH({
+        animationClock.updateTime(createFrameTime(50, 150));
+    }, "");
 
-    // Update can't go backwards.
-    animationClock.updateTime(50);
-    EXPECT_EQ(100, animationClock.currentTime());
-
-    mockTime = 50;
     AnimationClock::notifyTaskStart();
-    EXPECT_EQ(100, animationClock.currentTime());
-
-    mockTime = 150;
-    AnimationClock::notifyTaskStart();
-    EXPECT_GE(animationClock.currentTime(), mockTime);
-
-    // Update can't go backwards after advance to estimate.
-    animationClock.updateTime(100);
-    EXPECT_GE(animationClock.currentTime(), mockTime);
-}
-
-TEST_F(AnimationAnimationClockTest, CurrentTimeUpdatesTask)
-{
-    animationClock.updateTime(100);
-    EXPECT_EQ(100, animationClock.currentTime());
-
-    mockTime = 100;
-    AnimationClock::notifyTaskStart();
-    EXPECT_EQ(100, animationClock.currentTime());
-
-    mockTime = 150;
-    EXPECT_EQ(100, animationClock.currentTime());
+    EXPECT_DEATH({
+        animationClock.updateTime(createFrameTime(149, 150));
+    }, "");
+#endif
 }
 
 }