cc: Move UI Resource management out of LayerTreeHost.

cc/layers/ui_resource_layer_unittest.cc

Index: cc/layers/ui_resource_layer_unittest.cc
diff --git a/cc/layers/ui_resource_layer_unittest.cc b/cc/layers/ui_resource_layer_unittest.cc
index 62906af1076743d861b6eb25cedb81cfcc6412a0..c5fc041a9318d635bc1c6064aa989ce99b3d9d89 100644
--- a/cc/layers/ui_resource_layer_unittest.cc
+++ b/cc/layers/ui_resource_layer_unittest.cc
@@ -103,8 +103,9 @@ TEST_F(UIResourceLayerTest, SetUIResourceId) {
   EXPECT_FALSE(test_layer->DrawsContent());
 
   bool is_opaque = false;
-  std::unique_ptr<ScopedUIResource> resource = ScopedUIResource::Create(
-      layer_tree_host_.get(), UIResourceBitmap(gfx::Size(10, 10), is_opaque));
+  std::unique_ptr<ScopedUIResource> resource =
+      ScopedUIResource::Create(layer_tree_host_->GetUIResourceManager(),
+                               UIResourceBitmap(gfx::Size(10, 10), is_opaque));
   test_layer->SetUIResourceId(resource->id());
   test_layer->Update();
 
@@ -112,8 +113,9 @@ TEST_F(UIResourceLayerTest, SetUIResourceId) {
 
   // ID is preserved even when you set ID first and attach it to the tree.
   layer_tree_host_->SetRootLayer(nullptr);
-  std::unique_ptr<ScopedUIResource> shared_resource = ScopedUIResource::Create(
-      layer_tree_host_.get(), UIResourceBitmap(gfx::Size(5, 5), is_opaque));
+  std::unique_ptr<ScopedUIResource> shared_resource =
+      ScopedUIResource::Create(layer_tree_host_->GetUIResourceManager(),
+                               UIResourceBitmap(gfx::Size(5, 5), is_opaque));
   test_layer->SetUIResourceId(shared_resource->id());
   layer_tree_host_->SetRootLayer(test_layer);
   EXPECT_EQ(shared_resource->id(), test_layer->GetUIResourceId());