Oilpan: fix build after r179934.

Source/core/loader/FrameLoader.cpp

Index: Source/core/loader/FrameLoader.cpp
diff --git a/Source/core/loader/FrameLoader.cpp b/Source/core/loader/FrameLoader.cpp
index 84dd7c9bd408b34ffa57df5a0f4255dea16ab5f4..165c25c7710c62d20afd29610a4d084a4783dd5d 100644
--- a/Source/core/loader/FrameLoader.cpp
+++ b/Source/core/loader/FrameLoader.cpp
@@ -1392,13 +1392,13 @@ bool FrameLoader::shouldInterruptLoadForXFrameOptions(const String& content, con
     case XFrameOptionsAllowAll:
         return false;
     case XFrameOptionsConflict: {
-        RefPtr<ConsoleMessage> consoleMessage = ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, "Multiple 'X-Frame-Options' headers with conflicting values ('" + content + "') encountered when loading '" + url.elidedString() + "'. Falling back to 'DENY'.");
+        RefPtrWillBeRawPtr<ConsoleMessage> consoleMessage = ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, "Multiple 'X-Frame-Options' headers with conflicting values ('" + content + "') encountered when loading '" + url.elidedString() + "'. Falling back to 'DENY'.");
         consoleMessage->setRequestIdentifier(requestIdentifier);
         m_frame->document()->addMessage(consoleMessage.release());
         return true;
     }
     case XFrameOptionsInvalid: {
-        RefPtr<ConsoleMessage> consoleMessage = ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, "Invalid 'X-Frame-Options' header encountered when loading '" + url.elidedString() + "': '" + content + "' is not a recognized directive. The header will be ignored.");
+        RefPtrWillBeRawPtr<ConsoleMessage> consoleMessage = ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, "Invalid 'X-Frame-Options' header encountered when loading '" + url.elidedString() + "': '" + content + "' is not a recognized directive. The header will be ignored.");
         consoleMessage->setRequestIdentifier(requestIdentifier);
         m_frame->document()->addMessage(consoleMessage.release());
         return false;