Reland of Add --headless flag to Windows

headless/app/headless_shell_switches.cc

 // Copyright 2016 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 "headless/app/headless_shell_switches.h"
 
 namespace headless {
 namespace switches {
 
 // The background color to be used if the page doesn't specify one. Provided as
 // RGBA integer value in hex, e.g. 'ff0000ff' for red or '00000000' for
 // transparent.
 const char kDefaultBackgroundColor[] = "default-background-color";
 
+// Enable chrash reporter for headless.
+const char kEnableCrashReporter[] = "enable-crash-reporter";
+
 // The directory breakpad should store minidumps in.
 const char kCrashDumpsDir[] = "crash-dumps-dir";
 
 // Instructs headless_shell to cause network fetches to complete in order of
 // creation. This removes a significant source of network related
 // non-determinism at the cost of slower page loads.
 const char kDeterministicFetch[] = "deterministic-fetch";
 
 // Instructs headless_shell to print document.body.innerHTML to stdout.
 const char kDumpDom[] = "dump-dom";
@@ skipping 41 matching lines @@
 // network fetches have completed, timers fire and if the system runs out of
 // virtual time is fastforwarded so the next timer fires immediatley, until the
 // specified virtual time budget is exhausted.
 const char kVirtualTimeBudget[] = "virtual-time-budget";
 
 // Sets the initial window size. Provided as string in the format "800,600".
 const char kWindowSize[] = "window-size";
 
 }  // namespace switches
 }  // namespace headless