HTTP API: Pass proxy settings to Requests.

`WP_HTTP_Proxy()` is used directly in `WP_Http_Curl()` and `WP_Http_Streams()`. Since `WP_Http::request()` doesn't use them anymore we have to move the proxy handling into `WP_Http::request()` so the proxy data can be passed to `Requests::request()`.

Props rmccue.
See #33055.
Fixes #37107.
Built from https://develop.svn.wordpress.org/trunk@38054


git-svn-id: http://core.svn.wordpress.org/trunk@37995 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-http.php

@@ -347,6 +347,17 @@ class WP_Http {
 		 */
 		$options['verify'] = apply_filters( 'https_ssl_verify', $options['verify'] );
 
+		// Check for proxies.
+		$proxy = new WP_HTTP_Proxy();
+		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
+			$options['proxy'] = new Requests_Proxy_HTTP( $proxy->host() . ':' . $proxy->port() );
+
+			if ( $proxy->use_authentication() ) {
+				$options['proxy']->user = $proxy->username();
+				$options['proxy']->pass = $proxy->password();
+			}
+		}
+
 		try {
 			$requests_response = Requests::request( $url, $headers, $data, $type, $options );
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-beta2-38053';
+$wp_version = '4.6-beta2-38054';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.