Revert of Correctly handle damage involving filters in SurfaceAggregator

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 97852176f80da1697da3ce3e18ad66f2df08d3a9..89e1ebb179cce05fffe452724bca7143f55ae8a7 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -819,13 +819,6 @@
       render_surface->AppendRenderPasses(frame);
   }
 
-  // Damage rects for non-root passes aren't meaningful, so set them to be
-  // equal to the output rect.
-  for (size_t i = 0; i + 1 < frame->render_passes.size(); ++i) {
-    RenderPass* pass = frame->render_passes[i].get();
-    pass->damage_rect = pass->output_rect;
-  }
-
   // When we are displaying the HUD, change the root damage rect to cover the
   // entire root surface. This will disable partial-swap/scissor optimizations
   // that would prevent the HUD from updating, since the HUD does not cause