Add CSP header for resources with an active policy

Source/core/frame/csp/CSPDirectiveList.cpp

 // Copyright 2014 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.
 
 #include "config.h"
 #include "core/frame/csp/CSPDirectiveList.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/SecurityContext.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 390 matching lines @@
 {
     return checkHash(operativeDirective(m_styleSrc.get()), hashValue);
 }
 
 const String& CSPDirectiveList::pluginTypesText() const
 {
     ASSERT(hasPluginTypes());
     return m_pluginTypes->text();
 }
 
+bool CSPDirectiveList::hasScriptPolicy() const
+{
+    return !!operativeDirective(m_scriptSrc.get());
+}
+
+bool CSPDirectiveList::hasStylePolicy() const
+{
+    return !!operativeDirective(m_styleSrc.get());
+}
+
+bool CSPDirectiveList::hasImagePolicy() const
+{
+    return !!operativeDirective(m_imgSrc.get());
+}
+
+bool CSPDirectiveList::hasFontPolicy() const
+{
+    return !!operativeDirective(m_fontSrc.get());
+}
+
+bool CSPDirectiveList::hasMediaPolicy() const
+{
+    return !!operativeDirective(m_mediaSrc.get());
+}
+
+bool CSPDirectiveList::hasPluginPolicy() const
+{
+    return !!operativeDirective(m_objectSrc.get());

[Mike West, 2015/03/16 10:39:11]

Should this take `plugin-types` into account as well? Not sure...

[estark, 2015/03/17 18:27:34]

I can't quite figure out if it's necessary or not, so I added it to err on the
safe side. :)

+}
+
 // policy            = directive-list
 // directive-list    = [ directive *( ";" [ directive ] ) ]
 //
 void CSPDirectiveList::parse(const UChar* begin, const UChar* end)
 {
     m_header = String(begin, end - begin);
 
     if (begin == end)
         return;
 
@@ skipping 309 matching lines @@
             enableInsecureRequestsUpgrade(name, value);
         else
             m_policy->reportUnsupportedDirective(name);
     } else {
         m_policy->reportUnsupportedDirective(name);
     }
 }
 
 
 } // namespace blink