cc: Add checker-imaging support to TileManager.

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 330 matching lines @@
                     base::saturated_cast<int>(stats.canceled_count));
   return std::move(state);
 }
 
 TileManager::TileManager(
     TileManagerClient* client,
     base::SequencedTaskRunner* origin_task_runner,
     scoped_refptr<base::SequencedTaskRunner> image_worker_task_runner,
     size_t scheduled_raster_task_limit,
     bool use_partial_raster,
-    bool check_tile_priority_inversion)
+    bool check_tile_priority_inversion,
+    bool enable_checker_imaging)
     : client_(client),
       task_runner_(origin_task_runner),
       resource_pool_(nullptr),
       tile_task_manager_(nullptr),
       scheduled_raster_task_limit_(scheduled_raster_task_limit),
       use_partial_raster_(use_partial_raster),
       use_gpu_rasterization_(false),
       all_tiles_that_need_to_be_rasterized_are_scheduled_(true),
       did_check_for_completed_tasks_since_last_schedule_tasks_(true),
       did_oom_on_last_assign_(false),
       image_controller_(origin_task_runner,
                         std::move(image_worker_task_runner)),
+      checker_image_tracker_(&image_controller_, this, enable_checker_imaging),
       more_tiles_need_prepare_check_notifier_(
           task_runner_,
           base::Bind(&TileManager::CheckIfMoreTilesNeedToBePrepared,
                      base::Unretained(this))),
       signals_check_notifier_(task_runner_,
                               base::Bind(&TileManager::CheckAndIssueSignals,
                                          base::Unretained(this))),
       has_scheduled_tile_tasks_(false),
       prepare_tiles_count_(0u),
       next_tile_id_(0u),
@@ skipping 516 matching lines @@
     InsertNodesForRasterTask(&graph_, task, task->dependencies(), priority++,
                              use_foreground_category);
   }
 
   const std::vector<PrioritizedTile>& tiles_to_process_for_images =
       work_to_schedule.tiles_to_process_for_images;
   std::vector<DrawImage> new_locked_images;
   for (const PrioritizedTile& prioritized_tile : tiles_to_process_for_images) {
     Tile* tile = prioritized_tile.tile();
 
+    // TODO(khushalsagar): Send these images to the ImageDecodeService, through
+    // the CheckerImageTracker as well. See crbug.com/686267.
     std::vector<DrawImage> images;
     prioritized_tile.raster_source()->GetDiscardableImagesInRect(
         tile->enclosing_layer_rect(), tile->contents_scale(), &images);
     new_locked_images.insert(new_locked_images.end(), images.begin(),
                              images.end());
   }
 
   // TODO(vmpstr): SOON is misleading here, but these images can come from
   // several diffent tiles. Rethink what we actually want to trace here. Note
   // that I'm using SOON, since it can't be NOW (these are prepaint).
@@ skipping 82 matching lines @@
   }
 
   // For LOW_RESOLUTION tiles, we don't draw or predecode images.
   RasterSource::PlaybackSettings playback_settings;
   playback_settings.skip_images =
       prioritized_tile.priority().resolution == LOW_RESOLUTION;
 
   // Create and queue all image decode tasks that this tile depends on.
   TileTask::Vector decode_tasks;
   std::vector<DrawImage>& images = scheduled_draw_images_[tile->id()];
+  std::unordered_set<ImageId>& images_to_skip =
+      playback_settings.images_to_skip;
+  images_to_skip.clear();
   images.clear();
   if (!playback_settings.skip_images) {
-    prioritized_tile.raster_source()->GetDiscardableImagesInRect(
-        tile->enclosing_layer_rect(), tile->contents_scale(), &images);
+    checker_image_tracker_.FilterImagesForCheckeringForTile(
+        prioritized_tile, &images, &images_to_skip);
   }
 
-  // We can skip the image hijack canvas if we have no images.
-  playback_settings.use_image_hijack_canvas = !images.empty();
+  // We can skip the image hijack canvas if we have no images, or no images to
+  // skip during raster.
+  playback_settings.use_image_hijack_canvas =
+      !images.empty() || !images_to_skip.empty();
 
   // Get the tasks for the required images.
   ImageDecodeCache::TracingInfo tracing_info(
       prepare_tiles_count_, prioritized_tile.priority().priority_bin);
   image_controller_.GetTasksForImagesAndRef(&images, &decode_tasks,
                                             tracing_info);
 
   std::unique_ptr<RasterBuffer> raster_buffer =
       raster_buffer_provider_->AcquireBufferForRaster(
           resource, resource_content_id, tile->invalidated_id());
@@ skipping 236 matching lines @@
   // Mark required tiles as OOM so that we can activate/draw without them.
   for (; !queue->IsEmpty(); queue->Pop()) {
     Tile* tile = queue->Top().tile();
     if (tile->draw_info().IsReadyToDraw())
       continue;
     tile->draw_info().set_oom();
     client_->NotifyTileStateChanged(tile);
   }
 }
 
+void TileManager::AddImplSideInvalidations(LayerTreeImpl* pending_tree) {
+  checker_image_tracker_.AddInvalidationForCheckerImages(pending_tree);
+}
+
+void TileManager::DidActivateSyncTree() {
+  checker_image_tracker_.DidActivateSyncTree();
+}
+
+void TileManager::NeedsInvalidationForCheckerImagedTiles() {
+  client_->RequestImplSideInvalidation();
+}
+
 ResourceFormat TileManager::DetermineResourceFormat(const Tile* tile) const {
   return raster_buffer_provider_->GetResourceFormat(!tile->is_opaque());
 }
 
 bool TileManager::DetermineResourceRequiresSwizzle(const Tile* tile) const {
   return raster_buffer_provider_->IsResourceSwizzleRequired(!tile->is_opaque());
 }
 
 std::unique_ptr<base::trace_event::ConvertableToTraceFormat>
 TileManager::ScheduledTasksStateAsValue() const {
@@ skipping 97 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