Remove the chrome include in extensions\DEPS by creating a test data directory for extensions.

chrome/test/base/chrome_test_suite.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/test/base/chrome_test_suite.h"
 
 #if defined(OS_CHROMEOS)
 #include <stdio.h>
 #include <unistd.h>
 #endif
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/stats_table.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_content_browser_client.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "content/public/test/test_launcher.h"
+#include "extensions/common/extension_paths.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/dns/mock_host_resolver.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/resource/resource_handle.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/jni_android.h"
 #include "chrome/browser/android/chrome_jni_registrar.h"
@@ skipping 170 matching lines @@
   chrome::android::RegisterJni(base::android::AttachCurrentThread());
 #endif
 
   chrome::RegisterPathProvider();
   if (!browser_dir_.empty()) {
     PathService::Override(base::DIR_EXE, browser_dir_);
     PathService::Override(base::DIR_MODULE, browser_dir_);
   }
 
 #if !defined(OS_IOS)
+  extensions::RegisterPathProvider();
+
   if (!content::GetCurrentTestLauncherDelegate()) {
     // Only want to do this for unit tests. For browser tests, this won't create
     // the right object since TestChromeWebUIControllerFactory is used. That's
     // created and registered in ChromeBrowserMainParts as in normal startup.
     content::WebUIControllerFactory::RegisterFactory(
         ChromeWebUIControllerFactory::GetInstance());
   }
 #endif
 
   // Disable external libraries load if we are under python process in
@@ skipping 49 matching lines @@
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   base::mac::SetOverrideFrameworkBundle(NULL);
 #endif
 
   base::StatsTable::set_current(NULL);
   stats_table_.reset();
   RemoveSharedMemoryFile(stats_filename_);
 
   base::TestSuite::Shutdown();
 }