cc: Add TaskGraphRunner sub-namespaces with task concurrency limits.

cc/resources/bitmap_tile_task_worker_pool.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/bitmap_tile_task_worker_pool.h"
 
 #include <algorithm>
 
 #include "base/strings/stringprintf.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 105 matching lines @@
     for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) {
       if (!item.task_sets[task_set])
         continue;
 
       ++task_count[task_set];
 
       graph_.edges.push_back(
           TaskGraph::Edge(task, new_task_set_finished_tasks[task_set].get()));
     }
 
-    InsertNodesForRasterTask(&graph_, task, task->dependencies(), priority++);
+    InsertNodesForRasterTask(&graph_, task, task->dependencies(), priority++,
+                             kDefaultSubNamespace, kDefaultMaxConcurrentTasks);
   }
 
   for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) {
     InsertNodeForTask(&graph_, new_task_set_finished_tasks[task_set].get(),
                       kTaskSetFinishedTaskPriorityBase + task_set,
-                      task_count[task_set]);
+                      task_count[task_set], kDefaultSubNamespace,
+                      kDefaultMaxConcurrentTasks);
   }
 
   ScheduleTasksOnOriginThread(this, &graph_);
   task_graph_runner_->ScheduleTasks(namespace_token_, &graph_);
 
   std::copy(new_task_set_finished_tasks,
             new_task_set_finished_tasks + kNumberOfTaskSets,
             task_set_finished_tasks_);
 
   TRACE_EVENT_ASYNC_STEP_INTO1("cc", "ScheduledTasks", this, "running", "state",
@@ skipping 54 matching lines @@
       new base::trace_event::TracedValue();
 
   state->BeginArray("tasks_pending");
   for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set)
     state->AppendBoolean(tasks_pending_[task_set]);
   state->EndArray();
   return state;
 }
 
 }  // namespace cc