Rename ViewManagerService,ViewManagerClient -> ViewTree,ViewTreeClient

components/view_manager/view_manager_root_impl.cc

Index: components/view_manager/view_manager_root_impl.cc
diff --git a/components/view_manager/view_manager_root_impl.cc b/components/view_manager/view_manager_root_impl.cc
index a162747855acb6f781fd38ae5de772a4817a739e..529c722d67d40ed606ff074a3adbc8bbc60a05ae 100644
--- a/components/view_manager/view_manager_root_impl.cc
+++ b/components/view_manager/view_manager_root_impl.cc
@@ -37,8 +37,8 @@ void ViewManagerRootImpl::Init(ViewManagerRootDelegate* delegate) {
     delegate_->OnDisplayInitialized();
 }
 
-ViewManagerServiceImpl* ViewManagerRootImpl::GetViewManagerService() {
-  return delegate_ ? delegate_->GetViewManagerService() : nullptr;
+ViewTreeImpl* ViewManagerRootImpl::GetViewTree() {
+  return delegate_ ? delegate_->GetViewTree() : nullptr;
 }
 
 bool ViewManagerRootImpl::IsViewAttachedToRoot(const ServerView* view) const {