CC: Add fill mode to compositor animations

cc/animation/animation_unittest.cc

Index: cc/animation/animation_unittest.cc
diff --git a/cc/animation/animation_unittest.cc b/cc/animation/animation_unittest.cc
index c9b215b813dd6df6c9dbb768aedc313dc9ef6424..20060dd4896a322d2b25d15c521ca50f90566eb6 100644
--- a/cc/animation/animation_unittest.cc
+++ b/cc/animation/animation_unittest.cc
@@ -617,5 +617,28 @@ TEST(AnimationTest,
   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.5)));
 }
 
+TEST(AnimationTest, NoEffectBeforeAnimation) {

[dstockwell, 2014/09/18 00:14:29]

Test the interaction with playback rate?

[samli, 2014/09/18 00:59:55]

Done.

+  scoped_ptr<Animation> anim(CreateAnimation(1));
+  anim->set_fill_mode(Animation::FillModeNone);
+  EXPECT_EQ(true, anim->NoEffectBeforeAnimation(TicksFromSecondsF(-1.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(0.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(1.0)));
+
+  anim->set_fill_mode(Animation::FillModeForwards);
+  EXPECT_EQ(true, anim->NoEffectBeforeAnimation(TicksFromSecondsF(-1.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(0.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(1.0)));
+
+  anim->set_fill_mode(Animation::FillModeBackwards);
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(-1.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(0.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(1.0)));
+
+  anim->set_fill_mode(Animation::FillModeBoth);
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(-1.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(0.0)));
+  EXPECT_EQ(false, anim->NoEffectBeforeAnimation(TicksFromSecondsF(1.0)));
+}
+
 }  // namespace
 }  // namespace cc