cc: Remove fields unused now that strict property checking is always on.

cc/trees/layer_tree_settings_unittest.cc

Index: cc/trees/layer_tree_settings_unittest.cc
diff --git a/cc/trees/layer_tree_settings_unittest.cc b/cc/trees/layer_tree_settings_unittest.cc
index 8c10a1a911f70b887a6d22154969f27eada77020..cf9e27972ae91b3b2ba3881e06bc8636d2378f33 100644
--- a/cc/trees/layer_tree_settings_unittest.cc
+++ b/cc/trees/layer_tree_settings_unittest.cc
@@ -74,8 +74,6 @@ TEST(LayerTreeSettingsTest, AllMembersChanged) {
       settings.skewport_extrapolation_limit_in_content_pixels * 3 + 1;
   settings.max_memory_for_prepaint_percentage =
       settings.max_memory_for_prepaint_percentage * 3 + 1;
-  settings.strict_layer_property_change_checking =
-      !settings.strict_layer_property_change_checking;
   settings.use_zero_copy = !settings.use_zero_copy;
   settings.use_partial_raster = !settings.use_partial_raster;
   settings.enable_elastic_overscroll = !settings.enable_elastic_overscroll;
@@ -134,7 +132,6 @@ TEST(LayerTreeSettingsTest, ArbitraryValues) {
   settings.skewport_target_time_in_seconds = 0.6f;
   settings.skewport_extrapolation_limit_in_content_pixels = 61;
   settings.max_memory_for_prepaint_percentage = 62;
-  settings.strict_layer_property_change_checking = true;
   settings.use_zero_copy = true;
   settings.use_partial_raster = true;
   settings.enable_elastic_overscroll = false;