Move UserScript and related into extensions namespace

chrome/renderer/extensions/file_system_natives.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/renderer/extensions/file_system_natives.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/renderer/extensions/user_script_slave.h"
 #include "grit/renderer_resources.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebFileSystem.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/file_system_util.h"
 
 namespace {
 
 static v8::Handle<v8::Value> GetIsolatedFileSystem(
     const v8::Arguments& args) {
   DCHECK(args.Length() == 1);
   DCHECK(args[0]->IsString());
   std::string file_system_id(*v8::String::Utf8Value(args[0]));
   WebKit::WebFrame* webframe = WebKit::WebFrame::frameForCurrentContext();
   DCHECK(webframe);
 
-  GURL context_url = UserScriptSlave::GetDataSourceURLForFrame(webframe);
+  GURL context_url =
+      extensions::UserScriptSlave::GetDataSourceURLForFrame(webframe);
   CHECK(context_url.SchemeIs(chrome::kExtensionScheme));
 
   std::string name(fileapi::GetIsolatedFileSystemName(context_url.GetOrigin(),
                                                       file_system_id));
 
   std::string root(fileapi::GetFileSystemRootURI(context_url.GetOrigin(),
       fileapi::kFileSystemTypeIsolated).spec());
   root.append(file_system_id);
   root.append("/");
 
   return webframe->createFileSystem(
       WebKit::WebFileSystem::TypeIsolated,
       WebKit::WebString::fromUTF8(name.c_str()),
       WebKit::WebString::fromUTF8(root.c_str()));
 }
 
 }  // namespace
 
 namespace extensions {
 
 FileSystemNatives::FileSystemNatives()
     : ChromeV8Extension(NULL) {
   RouteStaticFunction("GetIsolatedFileSystem", &GetIsolatedFileSystem);
 }
 
 }  // namespace extensions