Move TaskGraph creation to TileManager

cc/raster/zero_copy_tile_task_worker_pool.cc

Index: cc/raster/zero_copy_tile_task_worker_pool.cc
diff --git a/cc/raster/zero_copy_tile_task_worker_pool.cc b/cc/raster/zero_copy_tile_task_worker_pool.cc
index 147eeca64f82f5d9f8848bd725273e24df830b2f..2b56003cdf0874901f8c9f09ef2ed20f8178e0fc 100644
--- a/cc/raster/zero_copy_tile_task_worker_pool.cc
+++ b/cc/raster/zero_copy_tile_task_worker_pool.cc
@@ -80,8 +80,7 @@ ZeroCopyTileTaskWorkerPool::ZeroCopyTileTaskWorkerPool(
       task_graph_runner_(task_graph_runner),
       namespace_token_(task_graph_runner->GetNamespaceToken()),
       resource_provider_(resource_provider),
-      use_rgba_4444_texture_format_(use_rgba_4444_texture_format),
-      task_set_finished_weak_ptr_factory_(this) {}
+      use_rgba_4444_texture_format_(use_rgba_4444_texture_format) {}
 
 ZeroCopyTileTaskWorkerPool::~ZeroCopyTileTaskWorkerPool() {
 }
@@ -90,10 +89,6 @@ TileTaskRunner* ZeroCopyTileTaskWorkerPool::AsTileTaskRunner() {
   return this;
 }
 
-void ZeroCopyTileTaskWorkerPool::SetClient(TileTaskRunnerClient* client) {
-  client_ = client;
-}
-
 void ZeroCopyTileTaskWorkerPool::Shutdown() {
   TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::Shutdown");
 
@@ -102,67 +97,13 @@ void ZeroCopyTileTaskWorkerPool::Shutdown() {
   task_graph_runner_->WaitForTasksToFinishRunning(namespace_token_);
 }
 
-void ZeroCopyTileTaskWorkerPool::ScheduleTasks(TileTaskQueue* queue) {
+void ZeroCopyTileTaskWorkerPool::ScheduleTasks(TaskGraph* graph) {
   TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::ScheduleTasks");
 
-  if (tasks_pending_.none())
-    TRACE_EVENT_ASYNC_BEGIN0("cc", "ScheduledTasks", this);
-
-  // Mark all task sets as pending.
-  tasks_pending_.set();
-
-  size_t priority = kTileTaskPriorityBase;
-
-  graph_.Reset();
-
-  // Cancel existing OnTaskSetFinished callbacks.
-  task_set_finished_weak_ptr_factory_.InvalidateWeakPtrs();
-
-  scoped_refptr<TileTask> new_task_set_finished_tasks[kNumberOfTaskSets];
-
-  size_t task_count[kNumberOfTaskSets] = {0};
-
-  for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) {
-    new_task_set_finished_tasks[task_set] = CreateTaskSetFinishedTask(
-        task_runner_.get(),
-        base::Bind(&ZeroCopyTileTaskWorkerPool::OnTaskSetFinished,
-                   task_set_finished_weak_ptr_factory_.GetWeakPtr(), task_set));
-  }
-
-  for (TileTaskQueue::Item::Vector::const_iterator it = queue->items.begin();
-       it != queue->items.end(); ++it) {
-    const TileTaskQueue::Item& item = *it;
-    RasterTask* task = item.task;
-    DCHECK(!task->HasCompleted());
-
-    for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) {
-      if (!item.task_sets[task_set])
-        continue;
-
-      ++task_count[task_set];
+  graph_ = graph;
 
-      graph_.edges.push_back(
-          TaskGraph::Edge(task, new_task_set_finished_tasks[task_set].get()));
-    }
-
-    InsertNodesForRasterTask(&graph_, task, task->dependencies(), priority++);
-  }
-
-  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]);
-  }
-
-  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",
-                               StateAsValue());
+  ScheduleTasksOnOriginThread(this, graph_);
+  task_graph_runner_->ScheduleTasks(namespace_token_, graph_);
 }
 
 void ZeroCopyTileTaskWorkerPool::CheckForCompletedTasks() {
@@ -207,31 +148,4 @@ void ZeroCopyTileTaskWorkerPool::ReleaseBufferForRaster(
   // Nothing to do here. RasterBufferImpl destructor cleans up after itself.
 }
 
-void ZeroCopyTileTaskWorkerPool::OnTaskSetFinished(TaskSet task_set) {
-  TRACE_EVENT1("cc", "ZeroCopyTileTaskWorkerPool::OnTaskSetFinished",
-               "task_set", task_set);
-
-  DCHECK(tasks_pending_[task_set]);
-  tasks_pending_[task_set] = false;
-  if (tasks_pending_.any()) {
-    TRACE_EVENT_ASYNC_STEP_INTO1("cc", "ScheduledTasks", this, "running",
-                                 "state", StateAsValue());
-  } else {
-    TRACE_EVENT_ASYNC_END0("cc", "ScheduledTasks", this);
-  }
-  client_->DidFinishRunningTileTasks(task_set);
-}
-
-scoped_refptr<base::trace_event::ConvertableToTraceFormat>
-ZeroCopyTileTaskWorkerPool::StateAsValue() const {
-  scoped_refptr<base::trace_event::TracedValue> state =
-      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