Add supports that allow Autofill to be initiated from textarea field

chrome/renderer/autofill/autofill_renderer_browsertest.cc

 // Copyright (c) 2012 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 "base/strings/utf_string_conversions.h"
 #include "chrome/test/base/chrome_render_view_test.h"
 #include "components/autofill/content/common/autofill_messages.h"
 #include "components/autofill/content/renderer/autofill_agent.h"
 #include "components/autofill/core/common/form_data.h"
 #include "components/autofill/core/common/form_field_data.h"
@@ skipping 163 matching lines @@
   WebFrame* web_frame = GetMainFrame();
   WebDocument document = web_frame->document();
   WebInputElement firstname =
       document.getElementById("firstname").to<WebInputElement>();
   WebInputElement middlename =
       document.getElementById("middlename").to<WebInputElement>();
 
   // Simulate attempting to Autofill the form from the first element, which
   // specifies autocomplete="off".  This should still trigger an IPC which
   // shouldn't display warnings.
-  autofill_agent_->InputElementClicked(firstname, true, true);
+  autofill_agent_->FormControlElementClicked(firstname, true, true);
   const IPC::Message* message1 = render_thread_->sink().GetFirstMessageMatching(
       AutofillHostMsg_QueryFormFieldAutofill::ID);
   EXPECT_NE(static_cast<IPC::Message*>(NULL), message1);
 
   AutofillQueryParam query_param;
   AutofillHostMsg_QueryFormFieldAutofill::Read(message1, &query_param);
   EXPECT_FALSE(query_param.e);
   render_thread_->sink().ClearMessages();
 
   // Simulate attempting to Autofill the form from the second element, which
   // does not specify autocomplete="off".  This should trigger an IPC that will
   // show warnings, as we *do* show warnings for elements that don't themselves
   // set autocomplete="off", but for which the form does.
-  autofill_agent_->InputElementClicked(middlename, true, true);
+  autofill_agent_->FormControlElementClicked(middlename, true, true);
   const IPC::Message* message2 = render_thread_->sink().GetFirstMessageMatching(
       AutofillHostMsg_QueryFormFieldAutofill::ID);
   ASSERT_NE(static_cast<IPC::Message*>(NULL), message2);
 
   AutofillHostMsg_QueryFormFieldAutofill::Read(message2, &query_param);
   EXPECT_TRUE(query_param.e);
 }
 
 }  // namespace autofill