cc: Reorder TileManager shutdown and add debugging information.

cc/tiles/tile_manager.cc

Index: cc/tiles/tile_manager.cc
diff --git a/cc/tiles/tile_manager.cc b/cc/tiles/tile_manager.cc
index 6388c8877b7cd84d15d009d03fc244a587b86cd0..ea9b32c3523f664ec2576a7b1bce47bb939ef247 100644
--- a/cc/tiles/tile_manager.cc
+++ b/cc/tiles/tile_manager.cc
@@ -346,11 +346,11 @@ void TileManager::FinishTasksAndCleanUp() {
 
   raster_buffer_provider_->Shutdown();
 
+  tile_task_manager_->CheckForCompletedTasks();
+
   // Now that all tasks have been finished, we can clear any |orphan_tasks_|.
   orphan_tasks_.clear();
 
-  tile_task_manager_->CheckForCompletedTasks();
-
   FreeResourcesForReleasedTiles();
   CleanUpReleasedTiles();