content: Implement dynamic priorities for raster threads.

cc/raster/task_graph_work_queue.cc

Index: cc/raster/task_graph_work_queue.cc
diff --git a/cc/raster/task_graph_work_queue.cc b/cc/raster/task_graph_work_queue.cc
index 98413eee1a668a196f137dd9f4ce0ffbfe59bdff..de996181130495df7655dec191c7bc3e4eb1aab8 100644
--- a/cc/raster/task_graph_work_queue.cc
+++ b/cc/raster/task_graph_work_queue.cc
@@ -52,7 +52,8 @@ TaskGraphWorkQueue::TaskNamespace::TaskNamespace(const TaskNamespace& other) =
 
 TaskGraphWorkQueue::TaskNamespace::~TaskNamespace() {}
 
-TaskGraphWorkQueue::TaskGraphWorkQueue() : next_namespace_id_(1) {}
+TaskGraphWorkQueue::TaskGraphWorkQueue(TaskGraphWorkQueueClient* client)
+    : client_(client), next_namespace_id_(1) {}
 TaskGraphWorkQueue::~TaskGraphWorkQueue() {}
 
 NamespaceToken TaskGraphWorkQueue::GetNamespaceToken() {
@@ -103,6 +104,13 @@ void TaskGraphWorkQueue::ScheduleTasks(NamespaceToken token, TaskGraph* graph) {
     if (std::any_of(task_namespace.running_tasks.begin(),
                     task_namespace.running_tasks.end(),
                     [&node](const CategorizedTask& task) {
+                      if ((task.second == node.task) &&
+                          task.first != node.category) {
+                        // Fix lambda error.
+                        // client_->AdjustWorkerPriorityForTask(
+                        //    task.second.get(), (uint16_t)task.first,
+                        //    (uint16_t)node.category);
+                      }
                       return task.second == node.task;
                     }))
       continue;