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

chrome/browser/extensions/api/identity/identity_api.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/extensions/api/identity/identity_api.h"
 
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 #include "chrome/browser/signin/token_service.h"
 #include "chrome/browser/signin/token_service_factory.h"
+#include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/extensions/extension.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_contents_delegate.h"
 #include "googleurl/src/gurl.h"
+#include "ui/views/controls/webview/webview.h"
+#include "ui/views/widget/widget.h"
+#include "ui/views/widget/widget_delegate.h"
+
+using content::WebContents;
+using content::WebContentsDelegate;
 
 namespace extensions {
 
 namespace {
 
 const char kInvalidClientId[] = "Invalid OAuth2 Client ID.";
 const char kInvalidScopes[] = "Invalid OAuth2 scopes.";
 
 }  // namespace
 
@@ skipping 38 matching lines @@
   Release();  // Balanced in RunImpl.
 }
 
 void GetAuthTokenFunction::OnMintTokenFailure(
     const GoogleServiceAuthError& error) {
   error_ = error.ToString();
   SendResponse(false);
   Release();  // Balanced in RunImpl.
 }
 
+LaunchAuthFlowFunction::LaunchAuthFlowFunction() {}
+LaunchAuthFlowFunction::~LaunchAuthFlowFunction() {}
+
+bool LaunchAuthFlowFunction::RunImpl() {
+  GURL auth_url(
+      "https://www.facebook.com/dialog/oauth"
+      "?client_id=223140341116959"
+      "&redirect_uri=http://munjalsample.appspot.com"
+      "&response_type=token&scope=user_photos");
+  auth_flow_.reset(new ExtensionAuthFlow(
+      this, profile(), GetExtension()->id(), auth_url));
+  auth_flow_->Start();
+  AddRef();
+  return true;
+}
+
+void LaunchAuthFlowFunction::OnAuthFlowCompleted(
+    const std::string& redirect_url) {
+  result_.reset(Value::CreateStringValue(redirect_url));
+  SendResponse(true);
+  Release();
+}
+
 }  // namespace extensions