Remove unused Document auxiliary methods.

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

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index 7dbdab76fef1d33804d2fd4d9d1d7fef581f02ae..c28883b6e1d4dfc0a840bf953fbed139ce409d9d 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -264,10 +264,7 @@ public:
     const ViewportDescription& viewportDescription() const { return m_viewportDescription; }
     Length viewportDefaultMinWidth() const { return m_viewportDefaultMinWidth; }
 
-    bool hasLegacyViewportTag() const { return m_legacyViewportDescription.isLegacyViewportType(); }
-
     String outgoingReferrer() const;
-    String outgoingOrigin() const;
 
     void setDoctype(PassRefPtrWillBeRawPtr<DocumentType>);
     DocumentType* doctype() const { return m_docType.get(); }