Media Galleries: Add chrome.mediaGalleries.addUserSelectedFolder().

chrome/renderer/extensions/media_galleries_custom_bindings.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/media_galleries_custom_bindings.h"
 
 #include <string>
 
-#include "base/files/file_path.h"
-#include "base/strings/stringprintf.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "v8/include/v8.h"
 #include "webkit/common/fileapi/file_system_util.h"
 
 namespace extensions {
 
-MediaGalleriesCustomBindings::MediaGalleriesCustomBindings(
-    Dispatcher* dispatcher, ChromeV8Context* context)
-    : ChromeV8Extension(dispatcher, context) {
-  RouteFunction(
-      "GetMediaFileSystemObject",
-      base::Bind(&MediaGalleriesCustomBindings::GetMediaFileSystemObject,
-                 base::Unretained(this)));
-}
+namespace {
 
-void MediaGalleriesCustomBindings::GetMediaFileSystemObject(
-    const v8::FunctionCallbackInfo<v8::Value>& args) {
+// FileSystemObject GetMediaFileSystem(string file_system_url): construct
+// a file system object from a file system url.
+void GetMediaFileSystemObject(const v8::FunctionCallbackInfo<v8::Value>& args) {
   if (args.Length() != 1) {
     NOTREACHED();
     return;
   }
   if (!args[0]->IsString()) {
     NOTREACHED();
     return;
   }
 
   std::string fsid(*v8::String::Utf8Value(args[0]));
   if (fsid.empty()) {
     NOTREACHED();
     return;
   }
 
   blink::WebFrame* webframe = blink::WebFrame::frameForCurrentContext();
   const GURL origin = GURL(webframe->document().securityOrigin().toString());
   const std::string fs_name = fileapi::GetIsolatedFileSystemName(origin, fsid);
   const std::string root_url =
       fileapi::GetIsolatedFileSystemRootURIString(
           origin, fsid, extension_misc::kMediaFileSystemPathPart);
   args.GetReturnValue().Set(
       webframe->createFileSystem(blink::WebFileSystemTypeIsolated,
                                  blink::WebString::fromUTF8(fs_name),
                                  blink::WebString::fromUTF8(root_url)));
 }
 
+}  // namespace
+
+MediaGalleriesCustomBindings::MediaGalleriesCustomBindings(
+    Dispatcher* dispatcher, ChromeV8Context* context)
+    : ChromeV8Extension(dispatcher, context) {
+  RouteFunction("GetMediaFileSystemObject",
+                base::Bind(&GetMediaFileSystemObject));
+}
+
 }  // namespace extensions