Add ELEMENT_TYPE_WEBSOCKET to subresource filter

third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h

Index: third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h
diff --git a/third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h b/third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h
index 8bc2745f32c6b5bcd7dfad8af42a3e9501743d1f..bb186309803f187db46d5a6dc6bfc311c007ce71 100644
--- a/third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h
+++ b/third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h
@@ -14,9 +14,11 @@ class WebURL;
 class WebDocumentSubresourceFilter {
  public:
   enum LoadPolicy { Allow, Disallow, WouldDisallow };
+
   virtual ~WebDocumentSubresourceFilter() {}
   virtual LoadPolicy getLoadPolicy(const WebURL& resourceUrl,
                                    WebURLRequest::RequestContext) = 0;
+  virtual LoadPolicy getLoadPolicyForWebSocketConnect(const WebURL&) = 0;
 
   // Report that a resource loaded by the document (not a preload) was
   // disallowed.