Implement on demand quad rasterization for PicturePiles.

cc/tile_manager.cc

Index: cc/tile_manager.cc
diff --git a/cc/tile_manager.cc b/cc/tile_manager.cc
index 4c611b91a2ecb3ca11c5b80277110b748bb83eda..848575d5c751dd5e592369cc006c16d0e52ed5a0 100644
--- a/cc/tile_manager.cc
+++ b/cc/tile_manager.cc
@@ -715,6 +715,8 @@ void TileManager::AnalyzeTile(Tile* tile) {
         managed_tile_state.picture_pile_analysis.solid_color);
     else if (managed_tile_state.picture_pile_analysis.is_transparent)
       tile->drawing_info().set_transparent();
+    else if (!managed_tile_state.can_use_gpu_memory)

[vmpstr, 2013/03/13 21:03:08]

I think the only way to get to this code path is if can_use_gpu_memory is true
(hence this else if will never be true). I think the more appropriate spot for
this check would be in AssignGpuMemory. One of the conditions there says
something along the lines of "if we want to raster, but we're out of memory"

[Leandro Graciá Gil, 2013/03/19 17:30:07]

Done.

+      tile->drawing_info().set_picture_pile();
   }
 }