gpu: GPU service scheduler.

cc/tiles/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/tiles/tile_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 508 matching lines @@
 void TileManager::Flush() {
   TRACE_EVENT0("cc", "TileManager::Flush");
 
   if (!tile_task_manager_) {
     TRACE_EVENT_INSTANT0("cc", "Flush aborted", TRACE_EVENT_SCOPE_THREAD);
     return;
   }
 
   tile_task_manager_->CheckForCompletedTasks();
   did_check_for_completed_tasks_since_last_schedule_tasks_ = true;
+
+  // Actually flush.
+  raster_buffer_provider_->Flush();
+
   CheckPendingGpuWorkTiles(true /* issue_signals */);
 
   TRACE_EVENT_INSTANT1("cc", "DidFlush", TRACE_EVENT_SCOPE_THREAD, "stats",
                        RasterTaskCompletionStatsAsValue(flush_stats_));
   flush_stats_ = RasterTaskCompletionStats();
 }
 
 void TileManager::DidModifyTilePriorities() {
   pending_tile_requirements_dirty_ = true;
 }
@@ skipping 880 matching lines @@
   state->EndDictionary();
   return std::move(state);
 }
 
 bool TileManager::UsePartialRaster() const {
   return tile_manager_settings_.use_partial_raster &&
          raster_buffer_provider_->CanPartialRasterIntoProvidedResource();
 }
 
 void TileManager::CheckPendingGpuWorkTiles(bool issue_signals) {
+  TRACE_EVENT2("cc", "TileManager::CheckPendingGpuWorkTiles",
+               "pending_gpu_work_tiles", pending_gpu_work_tiles_.size(),
+               "tree_priority",
+               TreePriorityToString(global_state_.tree_priority));
+
   ResourceProvider::ResourceIdArray required_for_activation_ids;
   ResourceProvider::ResourceIdArray required_for_draw_ids;
 
   for (auto it = pending_gpu_work_tiles_.begin();
        it != pending_gpu_work_tiles_.end();) {
     Tile* tile = *it;
     const Resource* resource = tile->draw_info().resource();
     DCHECK(resource);
 
     if (global_state_.tree_priority != SMOOTHNESS_TAKES_PRIORITY ||
@@ skipping 202 matching lines @@
   all_tile_tasks_completed = false;
   did_notify_all_tile_tasks_completed = false;
 }
 
 TileManager::PrioritizedWorkToSchedule::PrioritizedWorkToSchedule() = default;
 TileManager::PrioritizedWorkToSchedule::PrioritizedWorkToSchedule(
     PrioritizedWorkToSchedule&& other) = default;
 TileManager::PrioritizedWorkToSchedule::~PrioritizedWorkToSchedule() = default;
 
 }  // namespace cc