PPAPI: Move PPB_NetworkProxy out of Dev

ppapi/api/ppb_network_proxy.idl

+/* Copyright (c) 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 defines the <code>PPB_NetworkProxy</code> interface.
+ */
+
+[generate_thunk]
+
+label Chrome {
+  M29 = 1.0
+};
+
+/**
+ * This interface provides a way to determine the appropriate proxy settings
+ * for a given URL.

[yzshen1, 2013/06/21 06:45:40]

For other APIs, I have a paragraph called "Permissions" talking about what
permission is required.
https://chromiumcodereview.appspot.com/17314012/diff/1/ppapi/api/ppb_tcp_sock...

Maybe we should do the same thing here?

[dmichael (off chromium), 2013/06/21 15:56:08]

Yes, definitely, thanks for reminding me.

+ */
+[singleton]
+interface PPB_NetworkProxy {
+  /**
+   * Retrieves the proxy that will be used for the given URL. The result will
+   * be a string in PAC format. For more details about PAC format, please see
+   * http://en.wikipedia.org/wiki/Proxy_auto-config
+   *
+   * @param[in] instance A <code>PP_Instance</code> identifying one instance
+   * of a module.
+   *
+   * @param[in] url A string <code>PP_Var</code> containing a URL.
+   *
+   * @param[out] proxy_string A <code>PP_Var</code> that GetProxyForURL will
+   * set upon successful completion. If the call fails, <code>proxy_string
+   * </code> will be unchanged. Otherwise, it will be set to a string <code>
+   * PP_Var</code> containing the appropriate PAC string for <code>url</code>.
+   * If set, <code>proxy_string</code> will have a reference count of 1 which
+   * the plugin must manage.
+   *
+   * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
+   * completion.
+   *
+   * @return An int32_t containing an error code from <code>pp_errors.h</code>.
+   */
+  int32_t GetProxyForURL([in] PP_Instance instance,
+                         [in] PP_Var url,
+                         [out] PP_Var proxy_string,
+                         [in] PP_CompletionCallback callback);
+};