Revert of Mandoline UI Process: Update namespaces and file names

components/web_view/public/cpp/web_view.h

Index: components/web_view/public/cpp/web_view.h
diff --git a/components/web_view/public/cpp/web_view.h b/components/web_view/public/cpp/web_view.h
index b10c0d35019cb0256c7278c531a80440d9ca28a2..d3abc5a2e8ee2498be86867935fcd5bb22d58246 100644
--- a/components/web_view/public/cpp/web_view.h
+++ b/components/web_view/public/cpp/web_view.h
@@ -12,9 +12,6 @@
 
 namespace mojo {
 class ApplicationImpl;
-}
-
-namespace mus {
 class View;
 }
 
@@ -25,7 +22,7 @@
   explicit WebView(mojom::WebViewClient* client);
   ~WebView();
 
-  void Init(mojo::ApplicationImpl* app, mus::View* view);
+  void Init(mojo::ApplicationImpl* app, mojo::View* view);
 
   mojom::WebView* web_view() { return web_view_.get(); }