mustash chrome: Change how mus connection is set up in chrome.

chrome/browser/chrome_content_browser_client.h

Index: chrome/browser/chrome_content_browser_client.h
diff --git a/chrome/browser/chrome_content_browser_client.h b/chrome/browser/chrome_content_browser_client.h
index ca247d88fd62e3af956f283ec0e8616c4ba81b07..1b316572d0cdae9cb6e40928e7757cebbb00e50b 100644
--- a/chrome/browser/chrome_content_browser_client.h
+++ b/chrome/browser/chrome_content_browser_client.h
@@ -41,6 +41,10 @@ namespace version_info {
 enum class Channel;
 }
 
+namespace views {
+class WindowManagerConnection;
+}
+
 class ChromeContentBrowserClient : public content::ContentBrowserClient {
  public:
   ChromeContentBrowserClient();
@@ -341,6 +345,10 @@ class ChromeContentBrowserClient : public content::ContentBrowserClient {
   std::set<std::string> allowed_dev_channel_origins_;
 #endif
 
+#if defined(USE_AURA)
+  std::unique_ptr<views::WindowManagerConnection> window_manager_connection_;
+#endif
+
   // Vector of additional ChromeContentBrowserClientParts.
   // Parts are deleted in the reverse order they are added.
   std::vector<ChromeContentBrowserClientParts*> extra_parts_;