Add builders for tracing event's structural arguments

cc/resources/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_RESOURCES_TILE_MANAGER_H_
 #define CC_RESOURCES_TILE_MANAGER_H_
 
 #include <deque>
 #include <queue>
 #include <set>
 #include <utility>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "cc/base/ref_counted_managed.h"
 #include "cc/base/unique_notifier.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/resources/eviction_tile_priority_queue.h"
 #include "cc/resources/managed_tile_state.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/picture_pile_impl.h"
 #include "cc/resources/prioritized_tile_set.h"
 #include "cc/resources/raster_tile_priority_queue.h"
 #include "cc/resources/rasterizer.h"
 #include "cc/resources/resource_pool.h"
 #include "cc/resources/tile.h"
 
+namespace base {
+namespace debug {
+class ConvertableToTraceFormat;
+class TracedValue;
+}
+}
+
 namespace cc {
 class PictureLayerImpl;
 class ResourceProvider;
 
 class CC_EXPORT TileManagerClient {
  public:
   // Returns the set of layers that the tile manager should consider for raster.
   // TODO(vmpstr): Change the way we determine if we are ready to activate, so
   // that this can be removed.
   virtual const std::vector<PictureLayerImpl*>& GetPictureLayers() const = 0;
@@ skipping 23 matching lines @@
  protected:
   virtual ~TileManagerClient() {}
 };
 
 struct RasterTaskCompletionStats {
   RasterTaskCompletionStats();
 
   size_t completed_count;
   size_t canceled_count;
 };
-scoped_ptr<base::Value> RasterTaskCompletionStatsAsValue(
-    const RasterTaskCompletionStats& stats);
+scoped_refptr<base::debug::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 : public RasterizerClient,
                               public RefCountedManager<Tile> {
  public:
   static scoped_ptr<TileManager> Create(
       TileManagerClient* client,
@@ skipping 10 matching lines @@
 
   scoped_refptr<Tile> CreateTile(PicturePileImpl* picture_pile,
                                  const gfx::Size& tile_size,
                                  const gfx::Rect& content_rect,
                                  const gfx::Rect& opaque_rect,
                                  float contents_scale,
                                  int layer_id,
                                  int source_frame_number,
                                  int flags);
 
-  scoped_ptr<base::Value> BasicStateAsValue() const;
-  scoped_ptr<base::Value> AllTilesAsValue() const;
+  scoped_refptr<base::debug::ConvertableToTraceFormat> BasicStateAsValue()
+      const;
+  void BasicStateAsValueInto(base::debug::TracedValue* dict) const;
+  void AllTilesAsValueInto(base::debug::TracedValue* array) const;
   const MemoryHistory::Entry& memory_stats_from_last_assign() const {
     return memory_stats_from_last_assign_;
   }
 
   void InitializeTilesWithResourcesForTesting(const std::vector<Tile*>& tiles) {
     for (size_t i = 0; i < tiles.size(); ++i) {
       ManagedTileState& mts = tiles[i]->managed_state();
       ManagedTileState::TileVersion& tile_version =
           mts.tile_versions[HIGH_QUALITY_RASTER_MODE];
 
@@ skipping 132 matching lines @@
   std::vector<scoped_refptr<RasterTask> > orphan_raster_tasks_;
 
   UniqueNotifier ready_to_activate_check_notifier_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_MANAGER_H_