cc: Move worker threads to content.

cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc

Index: cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc
diff --git a/cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc b/cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc
index f7a5878b9435d7c99b934917502028850900781e..6d2d3e879c0b6513ccfd9af3f1fe592a2595fc44 100644
--- a/cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc
+++ b/cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc
@@ -9,6 +9,7 @@
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/test_shared_bitmap_manager.h"
+#include "cc/test/test_task_graph_runner.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -20,7 +21,7 @@ class ScrollbarAnimationControllerLinearFadeTest
       public ScrollbarAnimationControllerClient {
  public:
   ScrollbarAnimationControllerLinearFadeTest()
-      : host_impl_(&proxy_, &shared_bitmap_manager_) {}
+      : host_impl_(&proxy_, &shared_bitmap_manager_, &task_graph_runner_) {}
 
   void StartAnimatingScrollbarAnimationController(
       ScrollbarAnimationController* controller) override {
@@ -75,6 +76,7 @@ class ScrollbarAnimationControllerLinearFadeTest
 
   FakeImplProxy proxy_;
   TestSharedBitmapManager shared_bitmap_manager_;
+  TestTaskGraphRunner task_graph_runner_;
   FakeLayerTreeHostImpl host_impl_;
   scoped_ptr<ScrollbarAnimationControllerLinearFade> scrollbar_controller_;
   scoped_ptr<LayerImpl> clip_layer_;