cc: Move worker threads to content.

cc/layers/layer_perftest.cc

Index: cc/layers/layer_perftest.cc
diff --git a/cc/layers/layer_perftest.cc b/cc/layers/layer_perftest.cc
index 0b4c8522abd1720871410bb12b9b393ce3ccffe5..72b2e1345db28804674b1dcaba45aa90fa3eab35 100644
--- a/cc/layers/layer_perftest.cc
+++ b/cc/layers/layer_perftest.cc
@@ -10,7 +10,7 @@
 #include "cc/test/fake_layer_tree_host.h"
 #include "cc/test/fake_layer_tree_host_client.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
-
+#include "cc/test/test_task_graph_runner.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/perf/perf_test.h"
 
@@ -30,7 +30,7 @@ class MockLayerPainter : public LayerPainter {
 class LayerPerfTest : public testing::Test {
  public:
   LayerPerfTest()
-      : host_impl_(&proxy_, &shared_bitmap_manager_),
+      : host_impl_(&proxy_, &shared_bitmap_manager_, &task_graph_runner_),
         fake_client_(FakeLayerTreeHostClient::DIRECT_3D),
         timer_(kWarmupRuns,
                base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
@@ -50,6 +50,7 @@ class LayerPerfTest : public testing::Test {
 
   FakeImplProxy proxy_;
   TestSharedBitmapManager shared_bitmap_manager_;
+  TestTaskGraphRunner task_graph_runner_;
   FakeLayerTreeHostImpl host_impl_;
 
   FakeLayerTreeHostClient fake_client_;