Forward CSP violation reporting from RenderFrameProxy to RenderFrameImpl.

content/common/content_security_policy_header.h

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_COMMON_CONTENT_SECURITY_POLICY_HEADER_
-#define CONTENT_COMMON_CONTENT_SECURITY_POLICY_HEADER_
-
-#include <string>
-#include "third_party/WebKit/public/web/WebContentSecurityPolicy.h"
-
-namespace content {
-
-// Represents a single Content Security Policy header (i.e. coming from
-// a single Content-Security-Policy header in an HTTP response, or from
-// a single <meta http-equiv="Content-Security-Policy"...> element).
-struct ContentSecurityPolicyHeader {
-  std::string header_value;
-  blink::WebContentSecurityPolicyType type;
-  blink::WebContentSecurityPolicySource source;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_CONTENT_SECURITY_POLICY_HEADER_