Use TreeScope::completeURL and baseURL instead of the Document versions

Source/core/html/HTMLFrameElementBase.cpp

Index: Source/core/html/HTMLFrameElementBase.cpp
diff --git a/Source/core/html/HTMLFrameElementBase.cpp b/Source/core/html/HTMLFrameElementBase.cpp
index afc9ec57ecb071991be33a40b9d5ecb66dbc698e..4455130a385a120e36ee6614d0a66f32ac937920 100644
--- a/Source/core/html/HTMLFrameElementBase.cpp
+++ b/Source/core/html/HTMLFrameElementBase.cpp
@@ -55,7 +55,7 @@ bool HTMLFrameElementBase::isURLAllowed() const
     if (m_URL.isEmpty())
         return true;
 
-    const KURL& completeURL = document().completeURL(m_URL);
+    const KURL& completeURL = treeScope().completeURL(m_URL);
 
     if (protocolIsJavaScript(completeURL)) {
         Document* contentDoc = this->contentDocument();
@@ -84,7 +84,7 @@ void HTMLFrameElementBase::openURL(bool lockBackForwardList)
 
     // Support for <frame src="javascript:string">
     KURL scriptURL;
-    KURL url = document().completeURL(m_URL);
+    KURL url = treeScope().completeURL(m_URL);
     if (protocolIsJavaScript(m_URL)) {
         scriptURL = url;
         url = blankURL();
@@ -173,7 +173,7 @@ KURL HTMLFrameElementBase::location() const
 {
     if (fastHasAttribute(srcdocAttr))
         return KURL(ParsedURLString, "about:srcdoc");
-    return document().completeURL(getAttribute(srcAttr));
+    return treeScope().completeURL(getAttribute(srcAttr));
 }
 
 void HTMLFrameElementBase::setLocation(const String& str)