Plumb the referrer throughout the OpenURL APIs....

chrome/browser/views/constrained_window_impl.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CONSTRAINED_WINDOW_IMPL_H_
 #define CHROME_BROWSER_CONSTRAINED_WINDOW_IMPL_H_
 
 #include "base/gfx/rect.h"
 #include "chrome/browser/constrained_window.h"
 #include "chrome/browser/tab_contents_delegate.h"
@@ skipping 36 matching lines @@
   virtual bool IsSuppressedConstrainedWindow() const;
   virtual void WasHidden();
   virtual void DidBecomeSelected();
   virtual std::wstring GetWindowTitle() const;
   virtual void UpdateWindowTitle();
   virtual const gfx::Rect& GetCurrentBounds() const;
 
   // Overridden from PageNavigator (TabContentsDelegate's base interface):
   virtual void OpenURLFromTab(TabContents* source,
                               const GURL& url,
+                              const GURL& referrer,
                               WindowOpenDisposition disposition,
                               PageTransition::Type transition);
 
   // Overridden from TabContentsDelegate:
   virtual void NavigationStateChanged(const TabContents* source,
                                       unsigned changed_flags);
   virtual void ReplaceContents(TabContents* source,
                                TabContents* new_contents);
   virtual void AddNewContents(TabContents* source,
                               TabContents* new_contents,
@@ skipping 130 matching lines @@
   // The animation class which animates constrained windows onto the page.
   scoped_ptr<ConstrainedWindowAnimation> animation_;
 
   // Current display rectangle (relative to owner_'s visible area).
   gfx::Rect current_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(ConstrainedWindowImpl);
 };
 
 #endif  // #ifndef CHROME_BROWSER_CONSTRAINED_WINDOW_IMPL_H_