Block renderer-initiated main frame navigations to data URLs

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index 0fd5e49fd26d68b8ef62a66d36ae0a2beb9b5840..8f0f68792e51e47314fb78b3ac86d3c7543e55c8 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -672,6 +672,12 @@ class BLINK_EXPORT WebFrameClient {
   // content/ APIs.
   virtual bool allowWebGL(bool defaultValue) { return defaultValue; }
 
+  // Asks the embedder whether the frame is allowed to navigate the main frame
+  // to a data URL.
+  virtual bool allowContentInitiatedDataUrlNavigations(const WebURL&) {
+    return false;
+  }

[kinuko, 2017/04/07 07:52:34]

This should not be in 'WebGL' category, please move or split the section.

Is this only to check error page URL? It feels a bit sad to have all this
plumbing just for that.

[meacer, 2017/04/11 01:08:51]

Done.
Yes, unfortunately it's only for the error page.

+
   // Screen Orientation --------------------------------------------------
 
   // Access the embedder API for (client-based) screen orientation client .