cc: Add checker-imaging support to TileManager.

cc/tiles/tile_manager.h

 // 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.
 
 #ifndef CC_TILES_TILE_MANAGER_H_
 #define CC_TILES_TILE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <set>
 #include <unordered_map>
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/values.h"
 #include "cc/base/unique_notifier.h"
 #include "cc/playback/raster_source.h"
 #include "cc/raster/raster_buffer_provider.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/resource_pool.h"
+#include "cc/tiles/checker_image_tracker.h"
 #include "cc/tiles/decoded_image_tracker.h"
 #include "cc/tiles/eviction_tile_priority_queue.h"
 #include "cc/tiles/image_controller.h"
 #include "cc/tiles/raster_tile_priority_queue.h"
 #include "cc/tiles/tile.h"
 #include "cc/tiles/tile_draw_info.h"
 #include "cc/tiles/tile_task_manager.h"
 
 namespace base {
 namespace trace_event {
@@ skipping 38 matching lines @@
       TreePriority tree_priority) = 0;
 
   // Informs the client that due to the currently rasterizing (or scheduled to
   // be rasterized) tiles, we will be in a position that will likely require a
   // draw. This can be used to preemptively start a frame.
   virtual void SetIsLikelyToRequireADraw(bool is_likely_to_require_a_draw) = 0;
 
   // Requests the color space into which tiles should be rasterized.
   virtual gfx::ColorSpace GetTileColorSpace() const = 0;
 
+  // Requests that a pending tree be scheduled to invalidate content on the
+  // pending on active tree. This is currently used when tiles that are
+  // rasterized with missing images need to be invalidated.
+  virtual void RequestImplSideInvalidation() = 0;
+
  protected:
   virtual ~TileManagerClient() {}
 };
 
 struct RasterTaskCompletionStats {
   RasterTaskCompletionStats();
 
   size_t completed_count;
   size_t canceled_count;
 };
 std::unique_ptr<base::trace_event::ConvertableToTraceFormat>
 RasterTaskCompletionStatsAsValue(const RasterTaskCompletionStats& stats);
 
 // This class manages tiles, deciding which should get rasterized and which
 // should no longer have any memory assigned to them. Tile objects are "owned"
 // by layers; they automatically register with the manager when they are
 // created, and unregister from the manager when they are deleted.
-class CC_EXPORT TileManager {
+class CC_EXPORT TileManager : CheckerImageTrackerClient {
  public:
   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);
-  virtual ~TileManager();
+              bool check_tile_priority_inversion,
+              bool enable_checker_imaging);
+  ~TileManager() override;
 
   // Assigns tile memory and schedules work to prepare tiles for drawing.
   // - Runs client_->NotifyReadyToActivate() when all tiles required for
   // activation are prepared, or failed to prepare due to OOM.
   // - Runs client_->NotifyReadyToDraw() when all tiles required draw are
   // prepared, or failed to prepare due to OOM.
   bool PrepareTiles(const GlobalStateThatImpactsTilePriority& state);
 
   // Synchronously finish any in progress work, cancel the rest, and clean up as
   // much resources as possible. Also, prevents any future work until a
@@ skipping 15 matching lines @@
   void Flush();
 
   std::unique_ptr<Tile> CreateTile(const Tile::CreateInfo& info,
                                    int layer_id,
                                    int source_frame_number,
                                    int flags);
 
   bool IsReadyToActivate() const;
   bool IsReadyToDraw() const;
 
+  void AddImplSideInvalidations(LayerTreeImpl* sync_tree);
+  void DidActivateSyncTree();
+
   std::unique_ptr<base::trace_event::ConvertableToTraceFormat>
   BasicStateAsValue() const;
   void BasicStateAsValueInto(base::trace_event::TracedValue* dict) const;
   const MemoryHistory::Entry& memory_stats_from_last_assign() const {
     return memory_stats_from_last_assign_;
   }
 
   // Public methods for testing.
   void InitializeTilesWithResourcesForTesting(const std::vector<Tile*>& tiles) {
     for (size_t i = 0; i < tiles.size(); ++i) {
@@ skipping 52 matching lines @@
     return has_scheduled_tile_tasks_;
   }
 
   void OnRasterTaskCompleted(std::unique_ptr<RasterBuffer> raster_buffer,
                              Tile::Id tile_id,
                              Resource* resource,
                              bool was_canceled);
 
   void SetDecodedImageTracker(DecodedImageTracker* decoded_image_tracker);
 
+  // CheckerImageTrackerClient implementation.
+  void NeedsInvalidationForCheckerImagedTiles() override;
+
  protected:
   friend class Tile;
   // Must be called by tile during destruction.
   void Release(Tile* tile);
   Tile::Id GetUniqueTileId() { return ++next_tile_id_; }
 
  private:
   class MemoryUsage {
    public:
     MemoryUsage();
@@ skipping 89 matching lines @@
 
   std::unordered_map<Tile::Id, Tile*> tiles_;
 
   bool all_tiles_that_need_to_be_rasterized_are_scheduled_;
   MemoryHistory::Entry memory_stats_from_last_assign_;
 
   bool did_check_for_completed_tasks_since_last_schedule_tasks_;
   bool did_oom_on_last_assign_;
 
   ImageController image_controller_;
+  CheckerImageTracker checker_image_tracker_;
 
   RasterTaskCompletionStats flush_stats_;
 
   TaskGraph graph_;
 
   UniqueNotifier more_tiles_need_prepare_check_notifier_;
 
   Signals signals_;
 
   UniqueNotifier signals_check_notifier_;
 
   bool has_scheduled_tile_tasks_;
 
   uint64_t prepare_tiles_count_;
   uint64_t next_tile_id_;
 
   std::unordered_map<Tile::Id, std::vector<DrawImage>> scheduled_draw_images_;
   std::vector<scoped_refptr<TileTask>> locked_image_tasks_;
   const bool check_tile_priority_inversion_;
 
   base::WeakPtrFactory<TileManager> task_set_finished_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_TILE_MANAGER_H_