[Element / Autofill] Add boundsInViewportFloat() to fix <input> popup misalignment.

components/autofill/content/renderer/autofill_agent.cc

 // Copyright 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 "components/autofill/content/renderer/autofill_agent.h"
 
 #include <tuple>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 18 matching lines @@
 #include "components/autofill/core/common/form_data.h"
 #include "components/autofill/core/common/form_data_predictions.h"
 #include "components/autofill/core/common/form_field_data.h"
 #include "components/autofill/core/common/password_form.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/ssl_status.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "net/cert/cert_status_flags.h"
+#include "third_party/WebKit/public/platform/WebFloatRect.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebConsoleMessage.h"
 #include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebElementCollection.h"
 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 #include "third_party/WebKit/public/web/WebFormElement.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
@@ skipping 679 matching lines @@
                            &data_list_labels);
     TrimStringVectorForIPC(&data_list_values);
     TrimStringVectorForIPC(&data_list_labels);
   }
 
   is_popup_possibly_visible_ = true;
   Send(new AutofillHostMsg_SetDataList(routing_id(),
                                        data_list_values,
                                        data_list_labels));
 
-  blink::WebRect bounding_box_in_window = element_.boundsInViewport();
+  blink::WebFloatRect bounding_box_in_window = element_.boundsInViewportFloat();
+
   render_frame()->GetRenderView()->convertViewportToWindow(
       &bounding_box_in_window);
 
   Send(new AutofillHostMsg_QueryFormFieldAutofill(
       routing_id(), autofill_query_id_, form, field,
       gfx::RectF(bounding_box_in_window)));
 }
 
 void AutofillAgent::FillFieldWithValue(const base::string16& value,
                                        WebInputElement* node) {
@@ skipping 71 matching lines @@
 
 void AutofillAgent::LegacyAutofillAgent::OnDestruct() {
   // No-op. Don't delete |this|.
 }
 
 void AutofillAgent::LegacyAutofillAgent::FocusChangeComplete() {
   agent_->FocusChangeComplete();
 }
 
 }  // namespace autofill