Re-styled the App Info Dialog according to UI feedback

chrome/browser/ui/views/apps/app_info_dialog/app_info_panel.cc

+// Copyright 2014 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/views/apps/app_info_dialog/app_info_panel.h"
+
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/views/controls/label.h"
+#include "ui/views/layout/box_layout.h"
+#include "ui/views/layout/layout_constants.h"
+
+AppInfoPanel::AppInfoPanel(Profile* profile, const extensions::Extension* app)
+    : profile_(profile), app_(app) {
+}
+
+AppInfoPanel::~AppInfoPanel() {
+}
+
+views::Label* AppInfoPanel::CreateHeading(const base::string16& text) const {
+  views::Label* label = new views::Label(text);
+  label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+  label->SetFontList(ui::ResourceBundle::GetSharedInstance().GetFontList(
+      ui::ResourceBundle::MediumFont));
+  return label;
+}
+
+views::View* AppInfoPanel::CreateVerticalStack() const {
+  views::View* vertically_stacked_view = new views::View();
+  vertically_stacked_view->SetLayoutManager(
+      new views::BoxLayout(views::BoxLayout::kVertical,
+                           0,
+                           0,
+                           views::kRelatedControlVerticalSpacing));
+  return vertically_stacked_view;
+}