cc: Generalize raster task notifications

cc/resources/rasterizer.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/rasterizer.h"
 
 #include <algorithm>
 
 namespace cc {
 
@@ skipping 38 matching lines @@
 RasterTask::RasterTask(const Resource* resource,
                        ImageDecodeTask::Vector* dependencies)
     : resource_(resource) {
   dependencies_.swap(*dependencies);
 }
 
 RasterTask::~RasterTask() {}
 
 RasterTask* RasterTask::AsRasterTask() { return this; }
 
-RasterTaskQueue::Item::Item(RasterTask* task, bool required_for_activation)
-    : task(task), required_for_activation(required_for_activation) {}
+RasterTaskQueue::Item::Item(RasterTask* task,
+                            const TaskSetCollection& task_sets)
+    : task(task), task_sets(task_sets) {
+  DCHECK(task_sets.any());
+}
 
 RasterTaskQueue::Item::~Item() {}
 
 RasterTaskQueue::RasterTaskQueue() {
 }
 
 RasterTaskQueue::~RasterTaskQueue() {}
 
 void RasterTaskQueue::Swap(RasterTaskQueue* other) {
   items.swap(other->items);
 }
 
 void RasterTaskQueue::Reset() {
   items.clear();
 }
 
 }  // namespace cc