Split picture layer quads to allow removing more occluded area.

cc/layers/solid_color_scrollbar_layer_impl_unittest.cc

Index: cc/layers/solid_color_scrollbar_layer_impl_unittest.cc
diff --git a/cc/layers/solid_color_scrollbar_layer_impl_unittest.cc b/cc/layers/solid_color_scrollbar_layer_impl_unittest.cc
index 4cff576574466848db76da736150e24d8f6a7ecb..352b7d92c27e744c60ac993160a505db05af53f5 100644
--- a/cc/layers/solid_color_scrollbar_layer_impl_unittest.cc
+++ b/cc/layers/solid_color_scrollbar_layer_impl_unittest.cc
@@ -72,8 +72,8 @@ TEST(SolidColorScrollbarLayerImplTest, Occlusion) {
     impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
 
     size_t partially_occluded_count = 0;
-    LayerTestCommon::VerifyQuadsAreOccluded(
-        impl.quad_list(), occluded, &partially_occluded_count);
+    LayerTestCommon::VerifyQuadsAreOccluded(impl.quad_list(), occluded, false,
+                                            &partially_occluded_count);
     // The layer outputs one quad, which is partially occluded.
     EXPECT_EQ(1u, impl.quad_list().size());
     EXPECT_EQ(1u, partially_occluded_count);