cc: Move internal::Task::did_schedule_ to internal::WorkerPoolTask.

cc/resources/image_raster_worker_pool.cc

 // Copyright 2013 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/image_raster_worker_pool.h"
 
 #include "base/debug/trace_event.h"
 #include "base/values.h"
 #include "cc/debug/traced_value.h"
 #include "cc/resources/resource.h"
@@ skipping 47 matching lines @@
        it != raster_tasks().end();
        ++it) {
     internal::RasterWorkerPoolTask* task = it->get();
     DCHECK(!task->HasCompleted());
 
     if (task->use_gpu_rasterization()) {
       gpu_raster_tasks.push_back(task);
       continue;
     }
 
-    task->ScheduleOnOriginThread(this);
-
     CreateGraphNodeForImageRasterTask(
         task,
         task->dependencies(),
         priority++,
         IsRasterTaskRequiredForActivation(task),
         raster_required_for_activation_finished_node,
         raster_finished_node,
         &graph);
   }
 
@@ skipping 107 matching lines @@
   if (is_required_for_activation) {
     raster_required_for_activation_finished_node->add_dependency();
     image_node->add_dependent(raster_required_for_activation_finished_node);
   }
 
   raster_finished_node->add_dependency();
   image_node->add_dependent(raster_finished_node);
 }
 
 }  // namespace cc