Add back pipelining after M17 branch point.

chrome/common/chrome_switches.cc

 // Copyright (c) 2011 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/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 467 matching lines @@
 // Enables experimental timeline API.
 const char kEnableExtensionTimelineApi[]    = "enable-extension-timeline-api";
 
 // Enables the fastback page cache.
 const char kEnableFastback[]                = "enable-fastback";
 
 // By default, cookies are not allowed on file://. They are needed for testing,
 // for example page cycler and layout tests. See bug 1157243.
 const char kEnableFileCookies[]             = "enable-file-cookies";
 
+// Enable HTTP pipelining. Attempt to pipeline HTTP connections. Heuristics will
+// try to figure out if pipelining can be used for a given host and request.
+// Without this flag, pipelining will never be used.
+const char kEnableHttpPipelining[]          = "enable-http-pipelining";
+
 // Enables the in-browser thumbnailing, which is more efficient than the
 // in-renderer thumbnailing, as we can use more information to determine if we
 // need to update thumbnails.
 const char kEnableInBrowserThumbnailing[]   = "enable-in-browser-thumbnailing";
 
 // Enables IPv6 support, even if probes suggest that it may not be fully
 // supported. Some probes may require internet connections, and this flag will
 // allow support independent of application testing. This flag overrides
 // "disable-ipv6" which appears elswhere in this file.
 const char kEnableIPv6[]                    = "enable-ipv6";
@@ skipping 802 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches