cc: Remove low quality mode and cleanup tile versions.

cc/test/fake_picture_layer_impl.cc

Index: cc/test/fake_picture_layer_impl.cc
diff --git a/cc/test/fake_picture_layer_impl.cc b/cc/test/fake_picture_layer_impl.cc
index 79337fb3d8f3c3c71a055a00f3d52ae5aadf0d83..ce0a813b39492c9350da59083231cb745ae13bb9 100644
--- a/cc/test/fake_picture_layer_impl.cc
+++ b/cc/test/fake_picture_layer_impl.cc
@@ -148,8 +148,7 @@ void FakePictureLayerImpl::SetAllTilesReadyInTiling(
 
 void FakePictureLayerImpl::SetTileReady(Tile* tile) {
   ManagedTileState& state = tile->managed_state();
-  for (size_t mode_idx = 0; mode_idx < NUM_RASTER_MODES; ++mode_idx)
-    state.tile_versions[mode_idx].SetSolidColorForTesting(true);
+  state.draw_info.SetSolidColorForTesting(true);
   DCHECK(tile->IsReadyToDraw());
 }