Move Sad Tab implementation out of the TabContentsViews.

chrome/browser/tab_contents/background_contents.cc

Index: chrome/browser/tab_contents/background_contents.cc
diff --git a/chrome/browser/tab_contents/background_contents.cc b/chrome/browser/tab_contents/background_contents.cc
index b52f39b2e084743e3b68c8d853acdc0073116539..19d04f3cf5380db656c6ed99385347b00874f6dc 100644
--- a/chrome/browser/tab_contents/background_contents.cc
+++ b/chrome/browser/tab_contents/background_contents.cc
@@ -94,7 +94,7 @@ void BackgroundContents::DidNavigateMainFramePostCommit(TabContents* tab) {
       content::Details<BackgroundContents>(this));
 }
 
-void BackgroundContents::RenderViewGone() {
+void BackgroundContents::RenderViewGone(base::TerminationStatus status) {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_BACKGROUND_CONTENTS_TERMINATED,
       content::Source<Profile>(profile_),
@@ -103,7 +103,7 @@ void BackgroundContents::RenderViewGone() {
   // Our RenderView went away, so we should go away also, so killing the process
   // via the TaskManager doesn't permanently leave a BackgroundContents hanging
   // around the system, blocking future instances from being created
-  // (http://crbug.com/65189).
+  // <http://crbug.com/65189>.
   delete this;
 }