[Files.app] Fetch and use CWS OAuth token instead of Drive token in Suggest app dialog.

chrome/browser/chromeos/extensions/file_manager/private_api_misc.h

 // Copyright 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.
 //
 // This file provides miscellaneous API functions, which don't belong to
 // other files.
 
 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_PRIVATE_API_MISC_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_PRIVATE_API_MISC_H_
 
 #include "chrome/browser/chromeos/extensions/file_manager/private_api_base.h"
 #include "chrome/browser/chromeos/file_manager/zip_file_creator.h"
+#include "chrome/browser/google_apis/gdata_errorcode.h"
+
+namespace google_apis {
+class AuthServiceInterface;
+}
 
 namespace extensions {
 
 // Implements the chrome.fileBrowserPrivate.logoutUser method.
 class FileBrowserPrivateLogoutUserFunction : public SyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("fileBrowserPrivate.logoutUser",
                              FILEBROWSERPRIVATE_LOGOUTUSER)
 
   FileBrowserPrivateLogoutUserFunction();
@@ skipping 86 matching lines @@
 
  protected:
   virtual ~FileBrowserPrivateInstallWebstoreItemFunction();
   virtual bool RunImpl() OVERRIDE;
   void OnInstallComplete(bool success, const std::string& error);
 
  private:
   std::string webstore_item_id_;
 };
 
+class FileBrowserPrivateRequestWebStoreAccessTokenFunction
+    : public LoggedAsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("fileBrowserPrivate.requestWebStoreAccessToken",
+                             FILEBROWSERPRIVATE_REQUESTWEBSTOREACCESSTOKEN);
+
+  FileBrowserPrivateRequestWebStoreAccessTokenFunction();
+
+ protected:
+  virtual ~FileBrowserPrivateRequestWebStoreAccessTokenFunction();
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  scoped_ptr<google_apis::AuthServiceInterface> auth_service_;
+
+  void OnAccessTokenFetched(google_apis::GDataErrorCode code,
+                            const std::string& access_token);
+
+};
+
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_PRIVATE_API_MISC_H_