Implement the webdriver window sizing commands.

chrome/common/automation_constants.h

 // 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.
 
 #ifndef CHROME_COMMON_AUTOMATION_CONSTANTS_H__
 #define CHROME_COMMON_AUTOMATION_CONSTANTS_H__
 #pragma once
 
 #include <string>
 
@@ skipping 67 matching lines @@
 // to detect certain types of errors it may be interested in handling.
 // The error code values must stay consistent across compatible versions.
 enum ErrorCode {
   // An unknown error occurred.
   kUnknownError = 0,
   // Trying to operate on a JavaScript modal dialog when none is open.
   kNoJavaScriptModalDialogOpen = 1,
   // An open modal dialog blocked the operation. The operation may have
   // partially completed.
   kBlockedByModalDialog = 2,
+  // An ID was supplied that is invalid or does not refer to an existing object.
+  kInvalidId = 3,
 };
 
 // Represents an automation error. Each error has a code and an error message.
 class Error {
  public:
   // Creates an invalid error.
   Error();
 
   // Creates an error for the given code. A default message for the given code
   // will be used as the error message.
@@ skipping 54 matching lines @@
   SMALL_FONT = 12,
   MEDIUM_FONT = 16,
   LARGE_FONT = 24,
   LARGEST_FONT = 36
 };
 
 enum FindInPageDirection { BACK = 0, FWD = 1 };
 enum FindInPageCase { IGNORE_CASE = 0, CASE_SENSITIVE = 1 };
 
 #endif  // CHROME_COMMON_AUTOMATION_CONSTANTS_H__