Take 2 at removing thumb thickness compositor setting.

cc/layers/scrollbar_layer_unittest.cc

Index: cc/layers/scrollbar_layer_unittest.cc
diff --git a/cc/layers/scrollbar_layer_unittest.cc b/cc/layers/scrollbar_layer_unittest.cc
index 1e9442d55514d7f1e2f91006dd122bfe39179660..e62a032d6a3ce53acf5757dfa976ad7dc4200f43 100644
--- a/cc/layers/scrollbar_layer_unittest.cc
+++ b/cc/layers/scrollbar_layer_unittest.cc
@@ -266,7 +266,6 @@ TEST(ScrollbarLayerTest, SolidColorDrawQuads) {
   const int kTrackLength = 100;
 
   LayerTreeSettings layer_tree_settings;
-  layer_tree_settings.solid_color_scrollbar_thickness_dip = kThumbThickness;
   scoped_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(layer_tree_settings);
 
@@ -329,7 +328,6 @@ TEST(ScrollbarLayerTest, LayerDrivenSolidColorDrawQuads) {
   const int kTrackLength = 10;
 
   LayerTreeSettings layer_tree_settings;
-  layer_tree_settings.solid_color_scrollbar_thickness_dip = 3;
   scoped_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(layer_tree_settings);