cc: Separate RasterWorkerPool interface from implementation details.

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 {
+namespace internal {
+
+RasterizerTask::RasterizerTask() : did_schedule_(false), did_complete_(false) {}
+
+RasterizerTask::~RasterizerTask() {
+  DCHECK(!did_schedule_);
+  DCHECK(!did_run_ || did_complete_);
+}
+
+ImageDecodeTask* RasterizerTask::AsImageDecodeTask() { return NULL; }
+
+RasterTask* RasterizerTask::AsRasterTask() { return NULL; }
+
+void RasterizerTask::WillSchedule() { DCHECK(!did_schedule_); }
+
+void RasterizerTask::DidSchedule() {
+  did_schedule_ = true;
+  did_complete_ = false;
+}
+
+bool RasterizerTask::HasBeenScheduled() const { return did_schedule_; }
+
+void RasterizerTask::WillComplete() { DCHECK(!did_complete_); }
+
+void RasterizerTask::DidComplete() {
+  DCHECK(did_schedule_);
+  DCHECK(!did_complete_);
+  did_schedule_ = false;
+  did_complete_ = true;
+}
+
+bool RasterizerTask::HasCompleted() const { return did_complete_; }
+
+ImageDecodeTask::ImageDecodeTask() {}
+
+ImageDecodeTask::~ImageDecodeTask() {}
+
+ImageDecodeTask* ImageDecodeTask::AsImageDecodeTask() { return this; }
+
+RasterTask::RasterTask(const Resource* resource,
+                       internal::ImageDecodeTask::Vector* dependencies)
+    : resource_(resource) {
+  dependencies_.swap(*dependencies);
+}
+
+RasterTask::~RasterTask() {}
+
+RasterTask* RasterTask::AsRasterTask() { return this; }
+
+}  // namespace internal
+
+RasterTaskQueue::Item::Item(internal::RasterTask* task,
+                            bool required_for_activation)
+    : task(task), required_for_activation(required_for_activation) {}
+
+RasterTaskQueue::Item::~Item() {}
+
+RasterTaskQueue::RasterTaskQueue() : required_for_activation_count(0u) {}
+
+RasterTaskQueue::~RasterTaskQueue() {}
+
+void RasterTaskQueue::Swap(RasterTaskQueue* other) {
+  items.swap(other->items);
+  std::swap(required_for_activation_count,
+            other->required_for_activation_count);
+}
+
+void RasterTaskQueue::Reset() {
+  required_for_activation_count = 0u;
+  items.clear();
+}
+
+}  // namespace cc