[Md Feedback] Add initial data population for dialog.

chrome/browser/ui/webui/md_feedback/md_feedback_webui_message_handler.cc

+// Copyright 2016 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/ui/webui/md_feedback/md_feedback_webui_message_handler.h"
+
+#include "base/bind.h"
+#include "base/values.h"
+#include "chrome/browser/feedback/feedback_dialog_utils.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/signin/signin_manager_factory.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_finder.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/browser/ui/webui/md_feedback/md_feedback_ui.h"
+#include "components/signin/core/browser/signin_manager.h"
+
+namespace {
+
+// Message names.
+constexpr char kRequestData[] = "requestData";
+
+// JS function names.
+constexpr char kSetData[] = "Feedback.UI.setData";
+
+}  // namespace
+
+MdFeedbackWebUIMessageHandler::MdFeedbackWebUIMessageHandler(
+    MdFeedbackUI* md_feedback_ui)
+    : md_feedback_ui_(md_feedback_ui) {
+  DCHECK(md_feedback_ui_);
+}
+
+MdFeedbackWebUIMessageHandler::~MdFeedbackWebUIMessageHandler() {}
+
+void MdFeedbackWebUIMessageHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback(
+      kRequestData, base::Bind(&MdFeedbackWebUIMessageHandler::OnRequestData,
+                               base::Unretained(this)));
+}
+
+void MdFeedbackWebUIMessageHandler::OnRequestData(const base::ListValue* args) {
+  DVLOG(1) << "OnRequestData";
+  base::DictionaryValue data;
+
+  Profile* profile = md_feedback_ui_->profile();
+  // Do not launch feedback on an OTR profile.
+  profile = profile->GetOriginalProfile();
+  DCHECK(profile);
+
+  SigninManagerBase* signin_manager =
+      SigninManagerFactory::GetForProfile(profile);
+  DCHECK(signin_manager);
+  data.SetString("email", signin_manager->GetAuthenticatedAccountInfo().email);
+
+  GURL page_url = GURL();
+  Browser* browser = chrome::FindBrowserWithProfile(profile);
+  if (browser) {
+    page_url = chrome::GetTargetTabUrl(
+        browser->session_id().id(), browser->tab_strip_model()->active_index());
+  }
+
+  data.SetString("url", page_url.spec());
+
+  web_ui()->CallJavascriptFunctionUnsafe(kSetData, data);
+}