Switch AutofillManager to be UserData on WebContents.

chrome/browser/ui/tab_contents/tab_contents.h

Index: chrome/browser/ui/tab_contents/tab_contents.h
diff --git a/chrome/browser/ui/tab_contents/tab_contents.h b/chrome/browser/ui/tab_contents/tab_contents.h
index b218c143dc3a37fa72da6eb8fd9a4946fe1b4877..c5bbb1f56e3dac5fd2423bd56b68df12ddcc8c7f 100644
--- a/chrome/browser/ui/tab_contents/tab_contents.h
+++ b/chrome/browser/ui/tab_contents/tab_contents.h
@@ -8,12 +8,10 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
-#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/web_contents_observer.h"
 
 class AutofillExternalDelegate;
-class AutofillManager;
 class BasePanelBrowserTest;
 class Browser;
 class BrowserCommandsTabContentsCreator;
@@ -150,8 +148,6 @@ class TabContents : public content::WebContentsObserver {
 
   // Tab Helpers ---------------------------------------------------------------
 
-  AutofillManager* autofill_manager() { return autofill_manager_.get(); }
-
   ConstrainedWindowTabHelper* constrained_window_tab_helper() {
     return constrained_window_tab_helper_.get();
   }
@@ -196,7 +192,6 @@ class TabContents : public content::WebContentsObserver {
   // (These provide API for callers and have a getter function listed in the
   // "Tab Helpers" section in the member functions area, above.)
 
-  scoped_refptr<AutofillManager> autofill_manager_;
   scoped_ptr<AutofillExternalDelegate> autofill_external_delegate_;
   scoped_ptr<ConstrainedWindowTabHelper> constrained_window_tab_helper_;
   scoped_ptr<FaviconTabHelper> favicon_tab_helper_;