Some improvement of validation message bubble UI.

chrome/renderer/validation_message_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/validation_message_agent.h"
 
 #include "base/i18n/rtl.h"
 #include "chrome/common/validation_message_messages.h"
 #include "content/public/renderer/render_view.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
 ValidationMessageAgent::ValidationMessageAgent(content::RenderView* render_view)
     : content::RenderViewObserver(render_view)
 {
   render_view->GetWebView()->setValidationMessageClient(this);
 }
 
 ValidationMessageAgent::~ValidationMessageAgent() {}
 
 void ValidationMessageAgent::showValidationMessage(
-    const WebKit::WebRect& anchor_in_screen,
+    const WebKit::WebRect& anchor_in_root_view,
     const WebKit::WebString& main_text,
     const WebKit::WebString& sub_text,
     WebKit::WebTextDirection hint) {
   string16 wrapped_main_text = main_text;
   string16 wrapped_sub_text = sub_text;
   if (hint == WebKit::WebTextDirectionLeftToRight) {
     wrapped_main_text
         = base::i18n::GetDisplayStringInLTRDirectionality(wrapped_main_text);
     if (!wrapped_sub_text.empty()) {
       wrapped_sub_text
           = base::i18n::GetDisplayStringInLTRDirectionality(wrapped_sub_text);
     }
   } else if (hint == WebKit::WebTextDirectionRightToLeft
              && !base::i18n::IsRTL()) {
     base::i18n::WrapStringWithRTLFormatting(&wrapped_main_text);
     if (!wrapped_sub_text.empty()) {
       base::i18n::WrapStringWithRTLFormatting(&wrapped_sub_text);
     }
   }
 
   Send(new ValidationMessageMsg_ShowValidationMessage(
-      routing_id(), anchor_in_screen, wrapped_main_text, wrapped_sub_text));
+      routing_id(), anchor_in_root_view, wrapped_main_text, wrapped_sub_text));
 }
 
 void ValidationMessageAgent::hideValidationMessage() {
   Send(new ValidationMessageMsg_HideValidationMessage());
 }
 
+void ValidationMessageAgent::moveValidationMessage(
+      const WebKit::WebRect& anchor_in_root_view) {
+  Send(new ValidationMessageMsg_MoveValidationMessage(
+      routing_id(), anchor_in_root_view));
+}
+