Makes Shell::SetDisplayWorkAreaInsets() call to WmShell

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index f1ecea4ff9df78d765c895884b5d9592fdb4cd08..0327a11dc067e8159f363ca866b4727a52e3feda 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -274,10 +274,7 @@ views::NonClientFrameView* Shell::CreateDefaultNonClientFrameView(
 
 void Shell::SetDisplayWorkAreaInsets(Window* contains,
                                      const gfx::Insets& insets) {
-  if (!window_tree_host_manager_->UpdateWorkAreaOfDisplayNearestWindow(
-          contains, insets)) {
-    return;
-  }
+  wm_shell_->SetDisplayWorkAreaInsets(WmWindow::Get(contains), insets);

[msw, 2017/02/16 18:34:49]

It's a bit odd to do Shell->WmShell->Shell, but it's temporary...

[sky, 2017/02/16 18:42:20]

Acknowledged.

 }
 
 void Shell::OnLoginStateChanged(LoginStatus status) {