WebContentsViewAura: Remove redundant if statement

content/browser/web_contents/web_contents_view_aura.cc

Index: content/browser/web_contents/web_contents_view_aura.cc
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc
index 2d4912414d9ef948d3f4ea9241a24aea7f432cc6..2201cd0505018b1f5bbf0fb9da8d829d38f1f995 100644
--- a/content/browser/web_contents/web_contents_view_aura.cc
+++ b/content/browser/web_contents/web_contents_view_aura.cc
@@ -847,10 +847,8 @@ void WebContentsViewAura::CreateView(
     // It should be OK to not set a default parent since such users will
     // explicitly add this WebContentsViewAura to their tree after they create
     // us.
-    if (root_window) {
-      aura::client::ParentWindowWithContext(
-          window_.get(), root_window, root_window->GetBoundsInScreen());
-    }
+    aura::client::ParentWindowWithContext(window_.get(), root_window,
+                                          root_window->GetBoundsInScreen());
   }
   window_->layer()->SetMasksToBounds(true);
   window_->SetName("WebContentsViewAura");