Implement on demand quad rasterization for PicturePiles.

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 3452da75afaf10fe3d7b43ce3670245e42c67fb0..e935c69b771dfbd3731a71e9bbd9ac5ba675e782 100644
--- a/cc/resources/managed_tile_state.h
+++ b/cc/resources/managed_tile_state.h
@@ -67,6 +67,10 @@ class CC_EXPORT ManagedTileState {
       friend class TileManager;
       friend class ManagedTileState;
 
+      void set_texture() {

[reveman, 2013/03/22 23:56:50]

set_resource() and please change the enum to RESOURCE_MODE instead of
TEXTURE_MODE. we shouldn't be referring to textures here as we don't know the
type of resource.

[Leandro Graciá Gil, 2013/03/25 15:21:02]

Done.

+        mode_ = TEXTURE_MODE;
+      }
+
       void set_transparent() {
         mode_ = TRANSPARENT_MODE;
       }
@@ -76,6 +80,14 @@ class CC_EXPORT ManagedTileState {
         solid_color_ = color;
       }
 
+      void set_rasterize_on_demand() {
+        mode_ = PICTURE_PILE_MODE;
+      }
+
+      void set_contents_swizzled(bool contents_swizzled) {
+        contents_swizzled_ = contents_swizzled;
+      }
+
       Mode mode_;
       SkColor solid_color_;