[cc] Evict UIResources when the renderer is not visible

cc/trees/single_thread_proxy.cc

Index: cc/trees/single_thread_proxy.cc
diff --git a/cc/trees/single_thread_proxy.cc b/cc/trees/single_thread_proxy.cc
index 716dfbd5122a503b0cc786ef30ae0e85e5bea50a..0b6d852496a353834e5a3d4d44f8be0ed1a95238 100644
--- a/cc/trees/single_thread_proxy.cc
+++ b/cc/trees/single_thread_proxy.cc
@@ -210,6 +210,9 @@ void SingleThreadProxy::DoCommit(scoped_ptr<ResourceUpdateQueue> queue) {
             layer_tree_host_impl_->resource_provider());
     update_controller->Finalize();
 
+    if (layer_tree_host_impl_->EvictedUIResourcesExist())
+      layer_tree_host_->RecreateUIResources();
+
     layer_tree_host_->FinishCommitOnImplThread(layer_tree_host_impl_.get());
 
     layer_tree_host_impl_->CommitComplete();