cc: Prevent checkerboarded animations from timing out during tests.

cc/trees/layer_tree_host_unittest_animation.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include "cc/animation/animation_curve.h"
 #include "cc/animation/layer_animation_controller.h"
 #include "cc/animation/timing_function.h"
 #include "cc/layers/layer.h"
@@ skipping 669 matching lines @@
 class LayerTreeHostAnimationTestCheckerboardDoesntStartAnimations
     : public LayerTreeHostAnimationTest {
   virtual void SetupTree() OVERRIDE {
     LayerTreeHostAnimationTest::SetupTree();
     content_ = FakeContentLayer::Create(&client_);
     content_->SetBounds(gfx::Size(4, 4));
     content_->set_layer_animation_delegate(this);
     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;
     finished_times_ = 0;
 
     PostSetNeedsCommitToMainThread();
   }
 
   virtual void DispatchAddInstantAnimation(Layer* layer_to_receive_animation)
       OVERRIDE {
@@ skipping 54 matching lines @@
   int finished_times_;
   FakeContentLayerClient client_;
   scoped_refptr<FakeContentLayer> content_;
 };
 
 MULTI_THREAD_TEST_F(
     LayerTreeHostAnimationTestCheckerboardDoesntStartAnimations);
 
 }  // namespace
 }  // namespace cc