[OLD ATTEMPT, DO NOT REVIEW] mustash: Enable connections to mus from the Chrome renderer

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 441cedc27c3d583997679adfbf149684f7f6fd72..857f932df4ab44cc23221e18e60142a35feaec4e 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -43,13 +43,11 @@
 #include "ui/gfx/geometry/rect_f.h"
 #include "ui/gfx/geometry/size.h"
 
-struct BrowserPluginHostMsg_ResizeGuest_Params;
 struct ViewHostMsg_DateTimeDialogValue_Params;
 
 namespace content {
 class BrowserPluginEmbedder;
 class BrowserPluginGuest;
-class BrowserPluginGuestManager;
 class DateTimeChooserAndroid;
 class DownloadItem;
 class GeolocationServiceContext;