Remove --echo-ext-path flag

chrome/browser/extensions/component_loader.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/extensions/component_loader.h"
 
 #include <map>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 491 matching lines @@
   if (!skip_session_components) {
 #if defined(GOOGLE_CHROME_BUILD)
     if (!command_line->HasSwitch(
             chromeos::switches::kDisableQuickofficeComponentApp)) {
       std::string id = Add(IDR_QUICKOFFICE_MANIFEST, base::FilePath(
           FILE_PATH_LITERAL("/usr/share/chromeos-assets/quickoffice")));
       EnableFileSystemInGuestMode(id);
     }
 #endif  // defined(GOOGLE_CHROME_BUILD)
 
-    base::FilePath echo_extension_path(FILE_PATH_LITERAL(
-        "/usr/share/chromeos-assets/echo"));
-    if (command_line->HasSwitch(chromeos::switches::kEchoExtensionPath)) {
-      echo_extension_path = command_line->GetSwitchValuePath(
-          chromeos::switches::kEchoExtensionPath);
-    }
-    Add(IDR_ECHO_MANIFEST, echo_extension_path);
+    Add(IDR_ECHO_MANIFEST,
+        base::FilePath(FILE_PATH_LITERAL("/usr/share/chromeos-assets/echo")));
 
     if (!command_line->HasSwitch(chromeos::switches::kGuestSession)) {
       Add(IDR_WALLPAPERMANAGER_MANIFEST,
           base::FilePath(FILE_PATH_LITERAL("chromeos/wallpaper_manager")));
     }
 
     if (!command_line->HasSwitch(chromeos::switches::kDisableFirstRunUI)) {
       Add(IDR_FIRST_RUN_DIALOG_MANIFEST,
           base::FilePath(FILE_PATH_LITERAL("chromeos/first_run/app")));
     }
@@ skipping 95 matching lines @@
         off_the_record_context, Extension::GetBaseURLFromExtensionId(id));
     fileapi::FileSystemContext* file_system_context =
         content::BrowserContext::GetStoragePartitionForSite(
             off_the_record_context, site)->GetFileSystemContext();
     file_system_context->EnableTemporaryFileSystemInIncognito();
   }
 #endif
 }
 
 }  // namespace extensions