cc: Move data to LayerTree from LayerTreeHost.

cc/output/delegating_renderer_unittest.cc

Index: cc/output/delegating_renderer_unittest.cc
diff --git a/cc/output/delegating_renderer_unittest.cc b/cc/output/delegating_renderer_unittest.cc
index 0394d12939a44e5ef35b700b92c48dafdfc3dd2e..87fd7b6db8dd8021063ed55d9709ff24d92e6cb3 100644
--- a/cc/output/delegating_renderer_unittest.cc
+++ b/cc/output/delegating_renderer_unittest.cc
@@ -18,7 +18,7 @@ class DelegatingRendererTest : public LayerTreeTest {};
 class DelegatingRendererTestDraw : public DelegatingRendererTest {
  public:
   void BeginTest() override {
-    layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.5f, 4.f);
+    layer_tree()->SetPageScaleFactorAndLimits(1.f, 0.5f, 4.f);
     PostSetNeedsCommitToMainThread();
   }