cc: Eliminate tile.h's dependency on tile_manager.h

cc/resources/raster_worker_pool.h

 // Copyright 2013 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_RASTER_WORKER_POOL_H_
 #define CC_RESOURCES_RASTER_WORKER_POOL_H_
 
 #include <vector>
 
 #include "base/containers/hash_tables.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/resources/picture_pile_impl.h"
-#include "cc/resources/resource_provider.h"
+#include "cc/resources/raster_mode.h"
 #include "cc/resources/tile_priority.h"
 #include "cc/resources/worker_pool.h"
 
 class SkDevice;
 
 namespace skia {
 class LazyPixelRef;
 }
 
 namespace cc {
 class PicturePileImpl;
 class PixelBufferRasterWorkerPool;
 class Resource;
+class ResourceProvider;
 
 namespace internal {
 
 class CC_EXPORT RasterWorkerPoolTask
     : public base::RefCounted<RasterWorkerPoolTask> {
  public:
   typedef std::vector<scoped_refptr<WorkerPoolTask> > TaskVector;
 
   // Returns true if |device| was written to. False indicate that
   // the content of |device| is undefined and the resource doesn't
@@ skipping 33 matching lines @@
 template <> struct hash<cc::internal::RasterWorkerPoolTask*> {
   size_t operator()(cc::internal::RasterWorkerPoolTask* ptr) const {
     return hash<size_t>()(reinterpret_cast<size_t>(ptr));
   }
 };
 }  // namespace BASE_HASH_NAMESPACE
 #endif  // COMPILER
 
 namespace cc {
 
-// Low quality implies no lcd test; high quality implies lcd text.
-// Note that the order of these matters. It is organized in the order in which
-// we can promote tiles. That is, we always move from higher number enum to
-// lower number: low quality can be re-rastered as high quality with or without
-// LCD text; high quality LCD can only move to high quality no LCD mode. We
-// currently don't support moving from no LCD to LCD high quality.
-// TODO(vmpstr): Find a better place for this.
-enum RasterMode {
-  HIGH_QUALITY_NO_LCD_RASTER_MODE = 0,
-  HIGH_QUALITY_RASTER_MODE = 1,
-  LOW_QUALITY_RASTER_MODE = 2,
-  NUM_RASTER_MODES = 3
-};
-
-// Data that is passed to raster tasks.
-// TODO(vmpstr): Find a better place for this.
-struct RasterTaskMetadata {
-    scoped_ptr<base::Value> AsValue() const;
-    bool is_tile_in_pending_tree_now_bin;
-    TileResolution tile_resolution;
-    int layer_id;
-    const void* tile_id;
-    int source_frame_number;
-};
-
 class CC_EXPORT RasterWorkerPoolClient {
  public:
   virtual bool ShouldForceTasksRequiredForActivationToComplete() const = 0;
 
  protected:
   virtual ~RasterWorkerPoolClient() {}
 };
 
 // A worker thread pool that runs raster tasks.
 class CC_EXPORT RasterWorkerPool : public WorkerPool {
@@ skipping 83 matching lines @@
   // scheduled tasks. Reply callbacks are still guaranteed to run.
   virtual void Shutdown() OVERRIDE;
 
   // Schedule running of raster tasks in |queue| and all dependencies.
   // Previously scheduled tasks that are no longer needed to run
   // raster tasks in |queue| will be canceled unless already running.
   // Once scheduled, reply callbacks are guaranteed to run for all tasks
   // even if they later get canceled by another call to ScheduleTasks().
   virtual void ScheduleTasks(RasterTask::Queue* queue) = 0;
 
+  // TODO(vmpstr): Figure out an elegant way to not pass this many parameters.
   static RasterTask CreateRasterTask(
       const Resource* resource,
       PicturePileImpl* picture_pile,
       gfx::Rect content_rect,
       float contents_scale,
       RasterMode raster_mode,
-      const RasterTaskMetadata& metadata,
+      bool is_tile_in_pending_tree_now_bin,
+      TileResolution tile_resolution,
+      int layer_id,
+      const void* tile_id,
+      int source_frame_number,
       RenderingStatsInstrumentation* rendering_stats,
       const RasterTask::Reply& reply,
       Task::Set* dependencies);
 
   static Task CreateImageDecodeTask(
       skia::LazyPixelRef* pixel_ref,
       int layer_id,
       RenderingStatsInstrumentation* stats_instrumentation,
       const Task::Reply& reply);
 
@@ skipping 48 matching lines @@
   RasterTask::Queue::TaskSet raster_tasks_required_for_activation_;
 
   base::WeakPtrFactory<RasterWorkerPool> weak_ptr_factory_;
   scoped_refptr<internal::WorkerPoolTask> raster_finished_task_;
   int64 schedule_raster_tasks_count_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RASTER_WORKER_POOL_H_