Start implementing an auth flow for platform apps to be able to do auth

chrome/browser/ui/views/extensions/web_auth_flow_window_views.cc

+// Copyright (c) 2012 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/extensions/web_auth_flow_window_views.h"
+
+#include "ui/views/controls/webview/webview.h"
+#include "ui/views/widget/widget.h"
+
+using content::BrowserContext;
+using content::WebContents;
+using views::View;
+using views::WebView;
+using views::Widget;
+using views::WidgetDelegate;
+
+WebAuthFlowWindowViews::WebAuthFlowWindowViews(
+    Delegate* delegate,
+    BrowserContext* browser_context,
+    WebContents* contents)
+    : WebAuthFlowWindow(delegate, browser_context, contents),
+      web_view_(NULL),
+      widget_(NULL) {
+}
+
+WebAuthFlowWindowViews::~WebAuthFlowWindowViews() {

[sky, 2012/05/16 23:17:11]

Make order match header.

[Munjal (Google), 2012/05/16 23:33:44]

Done.

[Munjal (Google), 2012/05/16 23:33:44]

Done.

+  if (widget_)
+    widget_->Close();  // This also deletes the widget.
+}
+
+void WebAuthFlowWindowViews::Show() {
+  web_view_ = new WebView(browser_context_);
+  web_view_->SetWebContents(contents_);
+  widget_ = Widget::CreateWindow(this);
+  widget_->CenterWindow(gfx::Size(kDefaultWidth, kDefaultHeight));
+  widget_->Show();
+}
+
+views::View* WebAuthFlowWindowViews::GetContentsView() {
+  CHECK(web_view_);

[sky, 2012/05/16 23:17:11]

Use DCHECK for these.

[Munjal (Google), 2012/05/16 23:33:44]

Done.

+  return web_view_;
+}
+
+views::View* WebAuthFlowWindowViews::GetInitiallyFocusedView() {
+  CHECK(web_view_);
+  return web_view_;
+}
+
+void WebAuthFlowWindowViews::DeleteDelegate() {
+  if (delegate_)
+    delegate_->OnClose();
+}
+
+// static
+WebAuthFlowWindow* WebAuthFlowWindow::Create(
+    Delegate* delegate,
+    BrowserContext* browser_context,
+    WebContents* contents) {
+  return new WebAuthFlowWindowViews(delegate, browser_context, contents);
+}