cc: Remove ScheduleOnOriginThread() and CompleteOnOriginThread().

cc/test/fake_tile_manager.cc

 // Copyright 2012 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/test/fake_tile_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <deque>
 #include <limits>
 
 #include "base/lazy_instance.h"
 #include "base/thread_task_runner_handle.h"
 #include "cc/raster/raster_buffer.h"
 #include "cc/raster/tile_task_runner.h"
 
 namespace cc {
 
 namespace {
 
 class FakeTileTaskRunnerImpl : public TileTaskRunner, public TileTaskClient {
  public:
   // Overridden from TileTaskRunner:
   void Shutdown() override {}
   void ScheduleTasks(TaskGraph* graph) override {
     for (const auto& node : graph->nodes) {
       RasterTask* task = static_cast<RasterTask*>(node.task);
-
-      task->WillSchedule();
-      task->ScheduleOnOriginThread(this);
-      task->DidSchedule();
-
       completed_tasks_.push_back(task);
     }
   }
-  void CheckForCompletedTasks() override {
+  void CollectCompletedTasks(Task::Vector* completed_tasks) override {
+    // TODO(prashant.n): Modify the function definition to make it analogous
+    // with other overridden definitions of CollectCompletedTasks.
     for (RasterTask::Vector::iterator it = completed_tasks_.begin();
          it != completed_tasks_.end();
          ++it) {
       RasterTask* task = it->get();
-
-      task->WillComplete();
-      task->CompleteOnOriginThread(this);
       task->DidComplete();
     }
     completed_tasks_.clear();
   }
   ResourceFormat GetResourceFormat(bool must_support_alpha) const override {
     return RGBA_8888;
   }
   bool GetResourceRequiresSwizzle(bool must_support_alpha) const override {
     return ResourceFormatRequiresSwizzle(GetResourceFormat(must_support_alpha));
   }
 
+  TileTaskClient* AsTileTaskClient() override { return this; }
+
   // Overridden from TileTaskClient:
   scoped_ptr<RasterBuffer> AcquireBufferForRaster(
       const Resource* resource,
       uint64_t resource_content_id,
       uint64_t previous_content_id) override {
     return nullptr;
   }
   void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) override {}
 
  private:
@@ skipping 34 matching lines @@
 }
 
 void FakeTileManager::Release(Tile* tile) {
   TileManager::Release(tile);
 
   FreeResourcesForReleasedTiles();
   CleanUpReleasedTiles();
 }
 
 }  // namespace cc