Remove net::Filter direct dependency on IsSupportedMimeType

net/base/network_delegate_impl.h

Index: net/base/network_delegate_impl.h
diff --git a/net/base/network_delegate_impl.h b/net/base/network_delegate_impl.h
index aa87bd46f03445814b6c515e28fc4f7d8f4f5fb0..292e275409b888404ddd3dc07c7db9d362723274 100644
--- a/net/base/network_delegate_impl.h
+++ b/net/base/network_delegate_impl.h
@@ -193,6 +193,12 @@ class NET_EXPORT NetworkDelegateImpl : public NetworkDelegate {
       const URLRequest& request,
       const GURL& target_url,
       const GURL& referrer_url) const override;
+
+  // If we get a response with GZIP encoding, we check if the response mime
+  // type is one of the supported mime types. If it is supported, we will
+  // decompress response to allow it to be displayed directly in browser,
+  // otherwise we'll leave it compressed.
+  bool OnIsSupportedMimeType(const std::string& mime_type) const override;
 };
 
 }  // namespace net