Revert of Embedding-CSP: Refactoring directive strings into enum

third_party/WebKit/Source/core/frame/csp/SourceListDirective.cpp

Index: third_party/WebKit/Source/core/frame/csp/SourceListDirective.cpp
diff --git a/third_party/WebKit/Source/core/frame/csp/SourceListDirective.cpp b/third_party/WebKit/Source/core/frame/csp/SourceListDirective.cpp
index 2bbc8850482a3fe6af4668b5e8e48dbfd4bbda2d..888a95f4d9d551d1ff86ab3386917b2d380d48a0 100644
--- a/third_party/WebKit/Source/core/frame/csp/SourceListDirective.cpp
+++ b/third_party/WebKit/Source/core/frame/csp/SourceListDirective.cpp
@@ -141,8 +141,7 @@
       // list itself.
       if (scheme.isEmpty() && host.isEmpty())
         continue;
-      if (ContentSecurityPolicy::getDirectiveType(host) !=
-          ContentSecurityPolicy::DirectiveType::Undefined)
+      if (m_policy->isDirectiveName(host))
         m_policy->reportDirectiveAsSourceExpression(m_directiveName, host);
       m_list.append(new CSPSource(m_policy, scheme, host, port, path,
                                   hostWildcard, portWildcard));