Have MixedContentChecker and ProgressTracker keep a LocalFrame Member.

Source/core/loader/MixedContentChecker.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef MixedContentChecker_h
 #define MixedContentChecker_h
 
+#include "platform/heap/Handle.h"
 #include "public/platform/WebURLRequest.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class FrameLoaderClient;
 class LocalFrame;
 class KURL;
 class SecurityOrigin;
 
-class MixedContentChecker {
+class MixedContentChecker FINAL {
     WTF_MAKE_NONCOPYABLE(MixedContentChecker);
+    DISALLOW_ALLOCATION();
 public:
     explicit MixedContentChecker(LocalFrame*);
 
     static bool shouldBlockFetch(LocalFrame*, const ResourceRequest&, const KURL&);
 
     bool canDisplayInsecureContent(SecurityOrigin* securityOrigin, const KURL& url) const
     {
         return canDisplayInsecureContentInternal(securityOrigin, url, MixedContentChecker::Display);
     }
 
     bool canRunInsecureContent(SecurityOrigin* securityOrigin, const KURL& url) const
     {
         return canRunInsecureContentInternal(securityOrigin, url, MixedContentChecker::Execution);
     }
 
     bool canSubmitToInsecureForm(SecurityOrigin*, const KURL&) const;
     bool canConnectInsecureWebSocket(SecurityOrigin*, const KURL&) const;
     bool canFrameInsecureContent(SecurityOrigin*, const KURL&) const;
     static bool isMixedContent(SecurityOrigin*, const KURL&);
 
     static void checkMixedPrivatePublic(LocalFrame*, const AtomicString& resourceIPAddress);
 
+    void trace(Visitor*);
+
 private:
     enum MixedContentType {
         Display,
         Execution,
         WebSocket,
         Submission
     };
 
     enum ContextType {
         ContextTypeBlockable,
         ContextTypeOptionallyBlockable,
         ContextTypeShouldBeBlockable,
         ContextTypeBlockableUnlessLax
     };
 
     static ContextType contextTypeFromContext(WebURLRequest::RequestContext);
     static const char* typeNameFromContext(WebURLRequest::RequestContext);
     static void logToConsole(LocalFrame*, const KURL&, WebURLRequest::RequestContext, bool allowed);
 
     // FIXME: This should probably have a separate client from FrameLoader.
     FrameLoaderClient* client() const;
 
     bool canDisplayInsecureContentInternal(SecurityOrigin*, const KURL&, const MixedContentType) const;
 
     bool canRunInsecureContentInternal(SecurityOrigin*, const KURL&, const MixedContentType) const;
 
     void logWarning(bool allowed, const KURL& i, const MixedContentType) const;
 
-    LocalFrame* m_frame;
+    RawPtrWillBeMember<LocalFrame> m_frame;
 };
 
 } // namespace blink
 
 #endif // MixedContentChecker_h