Extracts parameters to WindowTreeHostMus into structure

ui/aura/mus/window_tree_host_mus_unittest.cc

Index: ui/aura/mus/window_tree_host_mus_unittest.cc
diff --git a/ui/aura/mus/window_tree_host_mus_unittest.cc b/ui/aura/mus/window_tree_host_mus_unittest.cc
index 041b1adc2fe13369f00753bfb2ddbf84c579a628..dadcd9df8db468799ae2b19f83aa199d7f42f8a0 100644
--- a/ui/aura/mus/window_tree_host_mus_unittest.cc
+++ b/ui/aura/mus/window_tree_host_mus_unittest.cc
@@ -5,6 +5,7 @@
 #include "ui/aura/mus/window_tree_host_mus.h"
 
 #include "base/memory/ptr_util.h"
+#include "ui/aura/mus/window_tree_host_mus_init_params.h"
 #include "ui/aura/test/aura_mus_test_base.h"
 #include "ui/aura/test/mus/test_window_tree.h"
 
@@ -14,8 +15,8 @@ using WindowTreeHostMusTest = aura::test::AuraMusClientTestBase;
 
 TEST_F(WindowTreeHostMusTest, UpdateClientArea) {
   std::unique_ptr<WindowTreeHostMus> window_tree_host_mus =
-      base::MakeUnique<WindowTreeHostMus>(window_tree_client_impl(),
-                                          cc::FrameSinkId());
+      base::MakeUnique<WindowTreeHostMus>(
+          aura::CreateInitParamsForTopLevel(window_tree_client_impl()));
 
   gfx::Insets new_insets(10, 11, 12, 13);
   window_tree_host_mus->SetClientArea(new_insets, std::vector<gfx::Rect>());
@@ -24,8 +25,8 @@ TEST_F(WindowTreeHostMusTest, UpdateClientArea) {
 
 TEST_F(WindowTreeHostMusTest, SetHitTestMask) {
   std::unique_ptr<WindowTreeHostMus> window_tree_host_mus =
-      base::MakeUnique<WindowTreeHostMus>(window_tree_client_impl(),
-                                          cc::FrameSinkId());
+      base::MakeUnique<WindowTreeHostMus>(
+          CreateInitParamsForTopLevel(window_tree_client_impl()));
 
   EXPECT_FALSE(window_tree()->last_hit_test_mask().has_value());
   gfx::Rect mask(10, 10, 10, 10);