TabContents -> WebContentsImpl, part 15.

content/public/browser/web_contents_observer.h

Index: content/public/browser/web_contents_observer.h
diff --git a/content/public/browser/web_contents_observer.h b/content/public/browser/web_contents_observer.h
index 47b94686e17b867d1255e10e446ef7d023372609..e3db1f124c0a6dabb81741c962b3ffe133ad5c7a 100644
--- a/content/public/browser/web_contents_observer.h
+++ b/content/public/browser/web_contents_observer.h
@@ -94,9 +94,9 @@ class CONTENT_EXPORT WebContentsObserver : public IPC::Channel::Listener,
                                 bool blocked_by_policy) {}
 
   // Invoked when the WebContents is being destroyed. Gives subclasses a chance
-  // to cleanup. At the time this is invoked |tab_contents()| returns NULL.
+  // to cleanup. At the time this is invoked |web_contents()| returns NULL.
   // It is safe to delete 'this' from here.
-  virtual void WebContentsDestroyed(WebContents* tab) {}
+  virtual void WebContentsDestroyed(WebContents* web_contents) {}
 
   // IPC::Channel::Listener implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;