Track CSP-set sandbox flags separately from frame owner flags

Bug: 740556
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_site_isolation
Change-Id: If696428160446e636eaa1a9fa3ef7e067b0c8922
Reviewed-on: https://chromium-review.googlesource.com/712711
Reviewed-by: Daniel Cheng <[email protected]>
Reviewed-by: Alex Moshchuk <[email protected]>
Commit-Queue: Ian Clelland <[email protected]>
Cr-Commit-Position: refs/heads/master@{#519420}
diff --git a/content/renderer/render_frame_proxy.h b/content/renderer/render_frame_proxy.h
index aec48f0..00f88ee 100644
--- a/content/renderer/render_frame_proxy.h
+++ b/content/renderer/render_frame_proxy.h
@@ -214,6 +214,7 @@
   void OnViewChanged(const viz::FrameSinkId& frame_sink_id);
   void OnDidStopLoading();
   void OnDidUpdateFramePolicy(const blink::FramePolicy& frame_policy);
+  void OnDidSetActiveSandboxFlags(blink::WebSandboxFlags active_sandbox_flags);
   void OnDispatchLoad();
   void OnCollapse(bool collapsed);
   void OnDidUpdateName(const std::string& name, const std::string& unique_name);