Implement a runtime headless mode for Linux

content/public/common/content_switches.cc

 // 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.
 
 #include "build/build_config.h"
 #include "content/public/common/content_switches.h"
 #include "media/media_features.h"
 
 namespace switches {
 
@@ skipping 558 matching lines @@
 
 // Makes GPU sandbox failures fatal.
 const char kGpuSandboxFailuresFatal[]       = "gpu-sandbox-failures-fatal";
 
 // Causes the GPU process to display a dialog on launch.
 const char kGpuStartupDialog[]              = "gpu-startup-dialog";
 
 // Ignores certificate-related errors.
 const char kIgnoreCertificateErrors[]       = "ignore-certificate-errors";
 
+// Start the browser in headless mode (i.e., without a UI or display server
+// dependencies). Also see remote-debugging-port.
+const char kHeadless[] = "headless";
+
 // Don't allow content to arbitrarily append to the back/forward list.
 // The page must prcoess a user gesture before an entry can be added.
 const char kHistoryEntryRequiresUserGesture[] =
     "history-entry-requires-user-gesture";
 
 // These mappings only apply to the host resolver.
 const char kHostResolverRules[]             = "host-resolver-rules";
 
 // Ignores GPU blacklist.
 const char kIgnoreGpuBlacklist[]            = "ignore-gpu-blacklist";
@@ skipping 479 matching lines @@
 // the given directory. Used primarily to gather samples for IPC fuzzing.
 const char kIpcDumpDirectory[] = "ipc-dump-directory";
 
 // Specifies the testcase used by the IPC fuzzer.
 const char kIpcFuzzerTestcase[] = "ipc-fuzzer-testcase";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches