Move ".crx"/".pem" constants and extension_filenames constants into extensions/common/constants.cc.

chrome/browser/extensions/extension_browsertest.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/extension_browsertest.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 215 matching lines @@
   std::string extension_id = service->component_loader()->Add(manifest, path);
   const Extension* extension = service->extensions()->GetByID(extension_id);
   if (!extension)
     return NULL;
   last_loaded_extension_id_ = extension->id();
   return extension;
 }
 
 const Extension* ExtensionBrowserTest::LoadExtensionAsComponent(
     const base::FilePath& path) {
-  return LoadExtensionAsComponentWithManifest(path,
-                                              extensions::kManifestFilename);
+  return LoadExtensionAsComponentWithManifest(
+      path, extensions::filenames::kManifestFilename);
 }
 
 base::FilePath ExtensionBrowserTest::PackExtension(
     const base::FilePath& dir_path) {
   base::FilePath crx_path = temp_dir_.path().AppendASCII("temp.crx");
   if (!base::DeleteFile(crx_path, false)) {
     ADD_FAILURE() << "Failed to delete crx: " << crx_path.value();
     return base::FilePath();
   }
 
@@ skipping 486 matching lines @@
     case content::NOTIFICATION_LOAD_STOP:
       VLOG(1) << "Got LOAD_STOP notification.";
       base::MessageLoopForUI::current()->Quit();
       break;
 
     default:
       NOTREACHED();
       break;
   }
 }