Remove deprecated TabContentsDelegate::OpenURLFromTab variant

content/browser/tab_contents/tab_contents.cc

Index: content/browser/tab_contents/tab_contents.cc
diff --git a/content/browser/tab_contents/tab_contents.cc b/content/browser/tab_contents/tab_contents.cc
index b9fba7064782c46f9bdb745ab755ec6455d2fc4f..23abcceda8b2e30ebb7c8b0e363b069487b32e86 100644
--- a/content/browser/tab_contents/tab_contents.cc
+++ b/content/browser/tab_contents/tab_contents.cc
@@ -573,8 +573,10 @@ TabContents* TabContents::OpenURL(const GURL& url,
                                   const GURL& referrer,
                                   WindowOpenDisposition disposition,
                                   content::PageTransition transition) {
-  return OpenURL(OpenURLParams(url, referrer, disposition, transition,
-                               false));
+  // For specifying a referrer, use the version of OpenURL taking OpenURLParams.
+  DCHECK(referrer.is_empty());
+  return OpenURL(OpenURLParams(url, content::Referrer(), disposition,
+                               transition, false));
 }
 
 TabContents* TabContents::OpenURL(const OpenURLParams& params) {
@@ -1745,7 +1747,7 @@ void TabContents::DocumentOnLoadCompletedInMainFrame(
 }
 
 void TabContents::RequestOpenURL(const GURL& url,
-                                 const GURL& referrer,
+                                 const content::Referrer& referrer,
                                  WindowOpenDisposition disposition,
                                  int64 source_frame_id) {
   TabContents* new_contents = NULL;