cc: Prevent checkerboarded animations from timing out during tests.

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 2e04acc43cfb987ff6e83ea96bbe64baedaf155e..01970512d7dd18885e968eaa7df38f459792de63 100644
--- a/cc/trees/layer_tree_host_unittest_animation.cc
+++ b/cc/trees/layer_tree_host_unittest_animation.cc
@@ -687,6 +687,12 @@ class LayerTreeHostAnimationTestCheckerboardDoesntStartAnimations
     layer_tree_host()->root_layer()->AddChild(content_);
   }
 
+  virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
+    // Make sure that drawing many times doesn't cause a checkerboarded
+    // animation to start so we avoid flake in this test.
+    settings->timeout_and_draw_when_animation_checkerboards = false;
+  }
+
   virtual void BeginTest() OVERRIDE {
     added_animations_ = 0;
     started_times_ = 0;