cc: Add new RasterWorkerPool interface.

cc/resources/managed_tile_state.h

Index: cc/resources/managed_tile_state.h
diff --git a/cc/resources/managed_tile_state.h b/cc/resources/managed_tile_state.h
index 7d5eec7cdf764f4e3417fde4a763aad3c0f55ba4..e8abed9a5d8ecaabe6cc65434aca0794dbf905e3 100644
--- a/cc/resources/managed_tile_state.h
+++ b/cc/resources/managed_tile_state.h
@@ -45,9 +45,9 @@ class CC_EXPORT ManagedTileState {
 
       ResourceProvider::ResourceId get_resource_id() const {
         DCHECK(mode_ == RESOURCE_MODE);
-        DCHECK(resource_);
+        DCHECK(resource_id_);
         DCHECK(memory_state_ == USING_RELEASABLE_MEMORY || forced_upload_);
-        return resource_->id();
+        return resource_id_;
       }
 
       SkColor get_solid_color() const {
@@ -90,16 +90,19 @@ class CC_EXPORT ManagedTileState {
         mode_ = SOLID_COLOR_MODE;
         solid_color_ = color;
         memory_state_ = NOT_ALLOWED_TO_USE_MEMORY;
+        resource_id_ = 0;
       }
 
       void set_rasterize_on_demand() {
         mode_ = PICTURE_PILE_MODE;
         memory_state_ = NOT_ALLOWED_TO_USE_MEMORY;
+        resource_id_ = 0;
       }
 
       Mode mode_;
       SkColor solid_color_;
 
+      ResourceProvider::ResourceId resource_id_;
       scoped_ptr<ResourcePool::Resource> resource_;
       GLenum resource_format_;
       TileVersionMemoryState memory_state_;
@@ -116,7 +119,7 @@ class CC_EXPORT ManagedTileState {
   TileVersion tile_version;
   bool picture_pile_analyzed;
   PicturePileImpl::Analysis picture_pile_analysis;
-  RasterWorkerPool::Task raster_task;
+  RasterWorkerPool::RasterTask raster_task;
 
   // Ephemeral state, valid only during TileManager::ManageTiles.
   bool is_in_never_bin_on_both_trees() const {