Re-implement form validation message UI with native widgets. (Common and Mac)

chrome/browser/validation_message_message_filter.cc

Index: chrome/browser/validation_message_message_filter.cc
diff --git a/chrome/browser/validation_message_message_filter.cc b/chrome/browser/validation_message_message_filter.cc
new file mode 100644
index 0000000000000000000000000000000000000000..efcee6923df70dd2bd2b972ab0a5c5d93612e723
--- /dev/null
+++ b/chrome/browser/validation_message_message_filter.cc
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+// 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/browser/validation_message_message_filter.h"
+
+#include "chrome/browser/ui/validation_message_bubble.h"
+#include "chrome/common/validation_message_messages.h"
+#include "content/public/browser/render_process_host.h"
+#include "content/public/browser/render_widget_host.h"
+
+using content::BrowserThread;
+using content::RenderProcessHost;
+using content::RenderWidgetHost;
+
+ValidationMessageMessageFilter::ValidationMessageMessageFilter(int renderer_id)
+  : renderer_id_(renderer_id) {
+}
+
+ValidationMessageMessageFilter::~ValidationMessageMessageFilter() {}
+
+bool ValidationMessageMessageFilter::OnMessageReceived(
+    const IPC::Message& message, bool* message_was_ok) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP_EX(
+      ValidationMessageMessageFilter, message, *message_was_ok)
+    IPC_MESSAGE_HANDLER(ValidationMessageMsg_ShowValidationMessage,
+                        OnShowValidationMessage)
+    IPC_MESSAGE_HANDLER(ValidationMessageMsg_HideValidationMessage,
+                        OnHideValidationMessage)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void ValidationMessageMessageFilter::OverrideThreadForMessage(
+    const IPC::Message& message, BrowserThread::ID* thread) {
+  if (message.type() == ValidationMessageMsg_ShowValidationMessage::ID
+      || message.type() == ValidationMessageMsg_HideValidationMessage::ID)
+    *thread = BrowserThread::UI;
+}
+
+void ValidationMessageMessageFilter::OnShowValidationMessage(
+    int route_id, const gfx::Rect& anchor_in_screen, const string16& main_text,
+    const string16& sub_text) {
+  RenderProcessHost* process = RenderProcessHost::FromID(renderer_id_);
+  RenderWidgetHost* widget_host = process->GetRenderWidgetHostByID(route_id);
+  validation_message_bubble_ = chrome::ValidationMessageBubble::CreateAndShow(
+      widget_host, anchor_in_screen, main_text, sub_text);
+}
+
+void ValidationMessageMessageFilter::OnHideValidationMessage() {
+  validation_message_bubble_.reset();
+}
+