Make Document::isSecureContext() work for OOPIFs

third_party/WebKit/Source/core/dom/SecurityContext.h

Index: third_party/WebKit/Source/core/dom/SecurityContext.h
diff --git a/third_party/WebKit/Source/core/dom/SecurityContext.h b/third_party/WebKit/Source/core/dom/SecurityContext.h
index 7c7143c58687bea460085b721ae819d3a6205e03..e183dab1c09318f66839dce3860e39eafd1f1279 100644
--- a/third_party/WebKit/Source/core/dom/SecurityContext.h
+++ b/third_party/WebKit/Source/core/dom/SecurityContext.h
@@ -68,7 +68,7 @@ public:
 
     SandboxFlags getSandboxFlags() const { return m_sandboxFlags; }
     bool isSandboxed(SandboxFlags mask) const { return m_sandboxFlags & mask; }
-    void enforceSandboxFlags(SandboxFlags mask);
+    virtual void enforceSandboxFlags(SandboxFlags mask);
 
     void setAddressSpace(WebURLRequest::AddressSpace space) { m_addressSpace = space; }
     WebURLRequest::AddressSpace addressSpace() const { return m_addressSpace; }
@@ -93,6 +93,8 @@ protected:
 
     void setContentSecurityPolicy(PassRefPtrWillBeRawPtr<ContentSecurityPolicy>);
 
+    void applySandboxFlags(SandboxFlags mask);
+
 private:
     RefPtr<SecurityOrigin> m_securityOrigin;
     RefPtrWillBeMember<ContentSecurityPolicy> m_contentSecurityPolicy;