cc: Fix flaky scroll animation test

cc/trees/layer_tree_host_unittest_animation.cc

Index: cc/trees/layer_tree_host_unittest_animation.cc
diff --git a/cc/trees/layer_tree_host_unittest_animation.cc b/cc/trees/layer_tree_host_unittest_animation.cc
index aee33bb09abf7a11a824d88b2484375116fc9997..f77964271d59b786230cd32d380f04aeecd13e3e 100644
--- a/cc/trees/layer_tree_host_unittest_animation.cc
+++ b/cc/trees/layer_tree_host_unittest_animation.cc
@@ -895,7 +895,6 @@ class LayerTreeHostAnimationTestScrollOffsetAnimationAdjusted
 
       // Verifiy the initial and target position before the scroll offset
       // update from MT.
-      EXPECT_EQ(Animation::RunState::RUNNING, animation->run_state());

[ajuma, 2017/02/10 16:19:05]

This will be STARTING if the first draw hasn't happened yet. But it really
doesn't matter for this test, since it doesn't affect the initial and target
scroll offsets of the animation.

       EXPECT_EQ(gfx::ScrollOffset(10.f, 20.f),
                 curve->GetValue(base::TimeDelta()));
       EXPECT_EQ(gfx::ScrollOffset(650.f, 750.f), curve->target_value());