cc: Fix const value pattern by replacing it by non-const or reference.

cc/animation/animation_host_perftest.cc

Index: cc/animation/animation_host_perftest.cc
diff --git a/cc/animation/animation_host_perftest.cc b/cc/animation/animation_host_perftest.cc
index a7c6e8989d62db5b211ed7b216ede0609af5813f..776a6872facfc651aaf074d5c10daacd4fbca528 100644
--- a/cc/animation/animation_host_perftest.cc
+++ b/cc/animation/animation_host_perftest.cc
@@ -56,7 +56,7 @@ class AnimationHostPerfTest : public testing::Test {
     return layer_tree_host_->host_impl()->animation_host();
   }
 
-  void CreatePlayers(const int num_players) {
+  void CreatePlayers(int num_players) {
     all_players_timeline_ =
         AnimationTimeline::Create(AnimationIdProvider::NextTimelineId());
     host()->AddAnimationTimeline(all_players_timeline_);
@@ -89,7 +89,7 @@ class AnimationHostPerfTest : public testing::Test {
       EXPECT_TRUE(timeline_impl->GetPlayerById(i));
   }
 
-  void CreateTimelines(const int num_timelines) {
+  void CreateTimelines(int num_timelines) {
     first_timeline_id_ = AnimationIdProvider::NextTimelineId();
     last_timeline_id_ = first_timeline_id_;