cc: Remove ScheduleOnOriginThread() and CompleteOnOriginThread().

cc/test/fake_tile_task_manager.cc

Index: cc/test/fake_tile_task_manager.cc
diff --git a/cc/test/fake_tile_task_manager.cc b/cc/test/fake_tile_task_manager.cc
index 9b28d55067754e971f6854c7ab393f2246a2bf90..f738131d63b0e09088dec37c0b930da241bc4397 100644
--- a/cc/test/fake_tile_task_manager.cc
+++ b/cc/test/fake_tile_task_manager.cc
@@ -21,25 +21,15 @@ FakeTileTaskManagerImpl::~FakeTileTaskManagerImpl() {}
 void FakeTileTaskManagerImpl::ScheduleTasks(TaskGraph* graph) {
   for (const auto& node : graph->nodes) {
     TileTask* task = static_cast<TileTask*>(node.task);
-
-    task->WillSchedule();
-    task->ScheduleOnOriginThread(raster_buffer_provider_.get());
-    task->DidSchedule();
-
+    // Cancel the task and append to |completed_tasks_|.
+    task->state().DidCancel();
     completed_tasks_.push_back(task);
   }
 }
 
-void FakeTileTaskManagerImpl::CheckForCompletedTasks() {
-  for (Task::Vector::iterator it = completed_tasks_.begin();
-       it != completed_tasks_.end(); ++it) {
-    TileTask* task = static_cast<TileTask*>(it->get());
-
-    task->WillComplete();
-    task->CompleteOnOriginThread(raster_buffer_provider_.get());
-    task->DidComplete();
-  }
-  completed_tasks_.clear();
+void FakeTileTaskManagerImpl::CollectCompletedTasks(
+    Task::Vector* completed_tasks) {
+  completed_tasks->swap(completed_tasks_);
 }
 
 void FakeTileTaskManagerImpl::Shutdown() {}