Outline ContentSecurityPolicy::document()

Source/core/frame/csp/ContentSecurityPolicy.h

Index: Source/core/frame/csp/ContentSecurityPolicy.h
diff --git a/Source/core/frame/csp/ContentSecurityPolicy.h b/Source/core/frame/csp/ContentSecurityPolicy.h
index 5d07921bfef66a3f7f910965ce65d1d4504f2ece..c6a919c5f2096c540c6296f64425d00e93fd912d 100644
--- a/Source/core/frame/csp/ContentSecurityPolicy.h
+++ b/Source/core/frame/csp/ContentSecurityPolicy.h
@@ -27,7 +27,6 @@
 #define ContentSecurityPolicy_h
 
 #include "bindings/v8/ScriptState.h"
-#include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "platform/network/HTTPParsers.h"
@@ -50,6 +49,7 @@ namespace WebCore {
 class ContentSecurityPolicyResponseHeaders;
 class CSPDirectiveList;
 class DOMStringList;
+class Document;
 class JSONObject;
 class KURL;
 class SecurityOrigin;
@@ -174,11 +174,12 @@ public:
     static bool isDirectiveName(const String&);
 
     ExecutionContext* executionContext() const { return m_executionContext; }
-    Document* document() const { return m_executionContext->isDocument() ? toDocument(m_executionContext) : 0; }
 
 private:
     explicit ContentSecurityPolicy(ExecutionContext*);
 
+    Document* document() const;
+
     void logToConsole(const String& message) const;
     void addPolicyFromHeaderValue(const String&, ContentSecurityPolicyHeaderType, ContentSecurityPolicyHeaderSource);