[password autofill] Remove references to PasswordForm from RenderViewImpl

chrome/renderer/one_click_signin_agent.cc

-// Copyright (c) 2013 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.
-
-#include "chrome/renderer/one_click_signin_agent.h"
-
-#include "chrome/common/one_click_signin_messages.h"
-#include "content/public/common/password_form.h"
-#include "content/public/renderer/document_state.h"
-#include "content/public/renderer/render_view.h"
-#include "third_party/WebKit/public/web/WebFormElement.h"
-#include "third_party/WebKit/public/web/WebFrame.h"
-
-OneClickSigninAgent::OneClickSigninAgent(
-    content::RenderView* render_view)
-    : content::RenderViewObserver(render_view) {
-}
-
-OneClickSigninAgent::~OneClickSigninAgent() {}
-
-void OneClickSigninAgent::WillSubmitForm(WebKit::WebFrame* frame,
-                                         const WebKit::WebFormElement& form) {
-  content::DocumentState* document_state =
-      content::DocumentState::FromDataSource(frame->provisionalDataSource());
-  if (document_state->password_form_data()) {
-    Send(new OneClickSigninHostMsg_FormSubmitted(routing_id(),
-         *(document_state->password_form_data())));
-  }
-}