[Extensions] Remove ExtensionWebUI

chrome/browser/extensions/chrome_content_browser_client_extensions_part.h

Index: chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
diff --git a/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h b/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
index a9a23332357e28e61f5472875d3d5c6ebed49de2..046610a79f74149ec7d95cbb8bf6e53ef5d5ac86 100644
--- a/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
+++ b/chrome/browser/extensions/chrome_content_browser_client_extensions_part.h
@@ -10,6 +10,7 @@
 #include "chrome/browser/chrome_content_browser_client_parts.h"
 
 namespace content {
+struct OpenURLParams;
 class ResourceContext;
 class VpnServiceProxy;
 }
@@ -60,6 +61,9 @@ class ChromeContentBrowserClientExtensionsPart
                                  const GURL& to_url,
                                  bool* result);
 
+  static void OverrideOpenURLParams(content::SiteInstance* site_instance,
+                                    content::OpenURLParams* params);
+
   // Helper function to call InfoMap::SetSigninProcess().
   static void SetSigninProcess(content::SiteInstance* site_instance);