Introduce AutofillClient and use it to get rid of PasswordManager dependency.

chrome/browser/ui/tab_contents/tab_contents.cc

Index: chrome/browser/ui/tab_contents/tab_contents.cc
diff --git a/chrome/browser/ui/tab_contents/tab_contents.cc b/chrome/browser/ui/tab_contents/tab_contents.cc
index d1fdb6b5f1724039b0d8ca1dc28552c5de3447a6..bf3ca5c38d6a5583e6e72092d479d7ef8100f494 100644
--- a/chrome/browser/ui/tab_contents/tab_contents.cc
+++ b/chrome/browser/ui/tab_contents/tab_contents.cc
@@ -31,6 +31,7 @@
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/browser/tab_contents/navigation_metrics_recorder.h"
+#include "chrome/browser/tab_contents/tab_autofill_manager_delegate.h"
 #include "chrome/browser/tab_contents/tab_contents_ssl_helper.h"
 #include "chrome/browser/tab_contents/thumbnail_generator.h"
 #include "chrome/browser/translate/translate_tab_helper.h"
@@ -91,7 +92,8 @@ TabContents::TabContents(WebContents* contents)
   restore_tab_helper_.reset(new RestoreTabHelper(contents));
 
   autocomplete_history_manager_.reset(new AutocompleteHistoryManager(contents));
-  autofill_manager_ = new AutofillManager(this);
+  autofill_delegate_.reset(new TabAutofillManagerDelegate(this));
+  autofill_manager_ = new AutofillManager(autofill_delegate_.get(), this);
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kExternalAutofillPopup)) {
     autofill_external_delegate_.reset(