Adding the --load-component-extension flag.

chrome/browser/profiles/profile_impl.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/browser/profiles/profile_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/environment.h"
@@ skipping 399 matching lines @@
 #endif
   extension_service_.reset(new ExtensionService(
       this,
       CommandLine::ForCurrentProcess(),
       GetPath().AppendASCII(ExtensionService::kInstallDirectoryName),
       extension_prefs_.get(),
       autoupdate_enabled,
       extensions_enabled));
 
   extension_service_->component_loader()->AddDefaultComponentExtensions();
+  if (command_line->HasSwitch(switches::kLoadComponentExtension)) {

[zel, 2011/11/29 00:19:56]

Can we make this flag load more than one component extension at the time? You
could comma separate component extension paths.

[SeRya, 2011/11/29 01:35:25]

Done.

+    FilePath path = command_line->GetSwitchValuePath(
+        switches::kLoadComponentExtension);
+    extension_service_->component_loader()->AddFromCommandLine(path);
+  }
   extension_service_->Init();
 
   if (extensions_enabled) {
     // Load any extensions specified with --load-extension.
     // TODO(yoz): Seems like this should move into ExtensionService::Init.
     if (command_line->HasSwitch(switches::kLoadExtension)) {
       FilePath path = command_line->GetSwitchValuePath(
           switches::kLoadExtension);
       extensions::UnpackedInstaller::Create(extension_service_.get())->
         LoadFromCommandLine(path);
@@ skipping 1147 matching lines @@
                                      FilePath* cache_path,
                                      int* max_size) {
   DCHECK(cache_path);
   DCHECK(max_size);
   FilePath path(prefs_->GetFilePath(prefs::kDiskCacheDir));
   if (!path.empty())
     *cache_path = path;
   *max_size = is_media_context ? prefs_->GetInteger(prefs::kMediaCacheSize) :
                                  prefs_->GetInteger(prefs::kDiskCacheSize);
 }