cc: Remove SetLayerTreeHostClientReady()

cc/tiles/tile_manager_unittest.cc

Index: cc/tiles/tile_manager_unittest.cc
diff --git a/cc/tiles/tile_manager_unittest.cc b/cc/tiles/tile_manager_unittest.cc
index 0a0cb60684f127354bdc036b759bebb8071bc372..12776ce23510610c4e184d89ee3021de230879c6 100644
--- a/cc/tiles/tile_manager_unittest.cc
+++ b/cc/tiles/tile_manager_unittest.cc
@@ -78,6 +78,7 @@ class TileManagerTilePriorityQueueTest : public testing::Test {
   }
 
   virtual void InitializeRenderer() {
+    host_impl_.SetVisible(true);
     host_impl_.InitializeRenderer(output_surface_.get());
   }
 
@@ -1445,6 +1446,7 @@ class TileManagerTest : public testing::Test {
         host_impl_(new MockLayerTreeHostImpl(&proxy_,
                                              &shared_bitmap_manager_,
                                              &task_graph_runner_)) {
+    host_impl_->SetVisible(true);
     host_impl_->InitializeRenderer(output_surface_.get());
   }