Add a commandline flag to chrome to validate crx files

chrome/browser/ui/startup/startup_browser_creator.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 "chrome/browser/ui/startup/startup_browser_creator.h"
 
 #include <algorithm>   // For max().
 #include <set>
 
 #include "base/bind.h"
@@ skipping 524 matching lines @@
   }
 
   if (command_line.HasSwitch(switches::kInstallFromWebstore)) {
     extensions::StartupHelper helper;
     helper.InstallFromWebstore(command_line, last_used_profile);
     // Nothing more needs to be done, so return false to stop launching and
     // quit.
     return false;
   }
 
+  if (command_line.HasSwitch(switches::kValidateCrx)) {
+    if (!process_startup) {
+      LOG(ERROR) << "chrome is already running; you must close all running "
+                 << "instances before running with the --"
+                 << switches::kValidateCrx << " flag";
+      return false;
+    }
+    extensions::StartupHelper helper;
+    helper.ValidateCrx(command_line);
+    return false;
+  }
+
   if (command_line.HasSwitch(switches::kLimitedInstallFromWebstore)) {
     extensions::StartupHelper helper;
     helper.LimitedInstallFromWebstore(command_line, last_used_profile,
                                       base::Bind(&base::DoNothing));
   }
 
 #if defined(OS_CHROMEOS)
   // The browser will be launched after the user logs in.
   if (command_line.HasSwitch(switches::kLoginManager) ||
       command_line.HasSwitch(switches::kLoginPassword)) {
@@ skipping 147 matching lines @@
 
 // static
 bool StartupBrowserCreator::ActivatedProfile() {
   return profile_launch_observer.Get().activated_profile();
 }
 
 bool HasPendingUncleanExit(Profile* profile) {
   return profile->GetLastSessionExitType() == Profile::EXIT_CRASHED &&
       !profile_launch_observer.Get().HasBeenLaunched(profile);
 }