Don't DCHECK if a watched directory doesn't exist.

chrome/browser/greasemonkey_master.cc

 // Copyright (c) 2008 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/greasemonkey_master.h"
 
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 151 matching lines @@
 
 
 GreasemonkeyMaster::GreasemonkeyMaster(MessageLoop* worker_loop,
                                        const FilePath& script_dir)
     : user_script_dir_(new FilePath(script_dir)),
       dir_watcher_(new DirectoryWatcher),
       worker_loop_(worker_loop),
       pending_scan_(false) {
   // Watch our scripts directory for modifications.
   bool ok = dir_watcher_->Watch(script_dir, this);
-  DCHECK(ok);
-
-  // (Asynchronously) scan for our initial set of scripts.
-  StartScan();
+  if (ok) {

[Evan Martin, 2009/01/07 18:47:57]

can do "if (dir_watcher_->Watch...)" and eliminate ok variable

+    // (Asynchronously) scan for our initial set of scripts.
+    StartScan();
+  }
 }
 
 GreasemonkeyMaster::~GreasemonkeyMaster() {
   if (script_reloader_)
     script_reloader_->DisownMaster();
 }
 
 void GreasemonkeyMaster::NewScriptsAvailable(base::SharedMemory* handle) {
   // Ensure handle is deleted or released.
   scoped_ptr<base::SharedMemory> handle_deleter(handle);
@@ skipping 25 matching lines @@
 
   StartScan();
 }
 
 void GreasemonkeyMaster::StartScan() {
   if (!script_reloader_)
     script_reloader_ = new ScriptReloader(this);
 
   script_reloader_->StartScan(worker_loop_, *user_script_dir_);
 }