Revert of cc: Move data to LayerTree from LayerTreeHost.

cc/proto/layer_tree.proto

Index: cc/proto/layer_tree.proto
diff --git a/cc/proto/layer_tree.proto b/cc/proto/layer_tree.proto
index 26b529168ad01be167ccb8030bfed1b8ae004d2c..790f08e672fef6063cd0714bab039d244287a0db 100644
--- a/cc/proto/layer_tree.proto
+++ b/cc/proto/layer_tree.proto
@@ -6,39 +6,9 @@
 
 package cc.proto;
 
-import "layer.proto";
-import "layer_selection_bound.proto";
-import "property_tree.proto";
-import "size.proto";
-
 option optimize_for = LITE_RUNTIME;
 
 message LayerTree {
   repeated int32 layers_that_should_push_properties = 1;
   optional bool in_paint_layer_contents = 2;
-  optional int32 overscroll_elasticity_layer_id = 3;
-  optional int32 page_scale_layer_id = 4;
-  optional int32 inner_viewport_scroll_layer_id = 5;
-  optional int32 outer_viewport_scroll_layer_id = 6;
-  optional bool needs_full_tree_sync = 7;
-  optional bool needs_meta_info_recomputation = 8;
-  optional int32 hud_layer_id = 9;
-  optional bool top_controls_shrink_blink_size = 10;
-  optional float top_controls_height = 11;
-  optional float top_controls_shown_ratio = 12;
-  optional float device_scale_factor = 13;
-  optional float painted_device_scale_factor = 14;
-  optional float page_scale_factor = 15;
-  optional float min_page_scale_factor = 16;
-  optional float max_page_scale_factor = 17;
-  optional Size device_viewport_size = 18;
-  optional uint32 background_color = 21; /* SkColor */
-  optional bool has_transparent_background = 22;
-  optional bool have_scroll_event_handlers = 23;
-  optional uint32 touch_start_or_move_event_listener_properties = 24;
-  optional uint32 wheel_event_listener_properties = 25;
-  optional uint32 touch_end_or_cancel_event_listener_properties = 26;
-  optional LayerNode root_layer = 27;
-  optional LayerSelection selection = 29;
-  optional PropertyTrees property_trees = 30;
 }