Revert of Upgrade insecure requests: Pipe navigational hosts down into nested documents.

Source/core/dom/SecurityContext.h

Index: Source/core/dom/SecurityContext.h
diff --git a/Source/core/dom/SecurityContext.h b/Source/core/dom/SecurityContext.h
index 6538a4fe91ed4ec068bc57b292c8c9a4aeee605e..7631aa8d0a4a236ec8c0ee86f2217b1561abf5db 100644
--- a/Source/core/dom/SecurityContext.h
+++ b/Source/core/dom/SecurityContext.h
@@ -28,10 +28,8 @@
 #define SecurityContext_h
 
 #include "core/dom/SandboxFlags.h"
-#include "wtf/HashSet.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
-#include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
@@ -42,8 +40,6 @@
 
 class SecurityContext {
 public:
-    using InsecureNavigationsSet = HashSet<unsigned, WTF::AlreadyHashed>;
-
     // The ordering here is important: 'Upgrade' overrides 'DoNotUpgrade'.
     enum InsecureRequestsPolicy {
         InsecureRequestsDoNotUpgrade = 0,
@@ -71,10 +67,6 @@
     void setInsecureRequestsPolicy(InsecureRequestsPolicy policy) { m_insecureRequestsPolicy = policy; }
     InsecureRequestsPolicy insecureRequestsPolicy() const { return m_insecureRequestsPolicy; }
 
-    void addInsecureNavigationUpgrade(const String& host) { m_insecureNavigationsToUpgrade.add(host.impl()->hash()); }

[Yoav Weiss, 2015/03/10 19:03:05]

here we trusted host.impl() to be non-null. Are we sure that's the case? If so,
worth ASSERTing once this goes back in

-    void addInsecureNavigationUpgrade(unsigned hashedHost) { m_insecureNavigationsToUpgrade.add(hashedHost); }
-    InsecureNavigationsSet* insecureNavigationsToUpgrade() { return &m_insecureNavigationsToUpgrade; }
-
 protected:
     SecurityContext();
     virtual ~SecurityContext();
@@ -93,7 +85,6 @@
 
     bool m_hostedInReservedIPRange;
     InsecureRequestsPolicy m_insecureRequestsPolicy;
-    InsecureNavigationsSet m_insecureNavigationsToUpgrade;
 };
 
 } // namespace blink