Implement ContentSecurityPolicy on the browser-side.

content/common/content_security_policy/csp_directive.h

Index: content/common/content_security_policy/csp_directive.h
diff --git a/content/common/content_security_policy/csp_directive.h b/content/common/content_security_policy/csp_directive.h
new file mode 100644
index 0000000000000000000000000000000000000000..eb0665c9d191d0d3e706bae64a9fa1a09fa2d826
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+++ b/content/common/content_security_policy/csp_directive.h
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+// Copyright 2017 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_CSP_DIRECTIVE
+#define CONTENT_COMMON_CONTENT_SECURITY_POLICY_CSP_DIRECTIVE
+
+#include <string>
+#include "content/common/content_export.h"
+#include "content/common/content_security_policy/csp_source_list.h"
+
+namespace content {
+
+struct CONTENT_EXPORT CSPDirective {
+  enum Name {
+    DefaultSrc,
+    FrameAncestors,
+    ChildSrc,
+    FrameSrc,
+    FormAction,
+
+    ReportURI,
+
+    Unknown,
+    NAME_LAST = Unknown
+  };
+
+  static std::string NameToString(Name name);
+  static Name StringToName(const std::string& name);
+
+  CSPDirective();
+  CSPDirective(Name name, const CSPSourceList& source_list);
+  CSPDirective(const CSPDirective&);
+
+  Name name;
+  CSPSourceList source_list;
+
+  std::string ToString() const;
+};
+
+}  // namespace content
+#endif  // CONTENT_COMMON_CONTENT_SECURITY_POLICY_CSP_DIRECTIVE