Use createV8Entry() and toV8Value() with context and isolate defined in WebDOMFileSystem.

extensions/renderer/file_system_natives.cc

 // Copyright 2014 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 "extensions/renderer/file_system_natives.h"
 
 #include <string>
 
 #include "extensions/common/constants.h"
 #include "extensions/renderer/script_context.h"
@@ skipping 46 matching lines @@
     optional_root_name = *v8::String::Utf8Value(args[1]);
   }
 
   GURL root_url(fileapi::GetIsolatedFileSystemRootURIString(
       context_url.GetOrigin(), file_system_id, optional_root_name));
 
   args.GetReturnValue().Set(
       blink::WebDOMFileSystem::create(webframe,
                                       blink::WebFileSystemTypeIsolated,
                                       blink::WebString::fromUTF8(name),
-                                      root_url).toV8Value());
+                                      root_url)
+          .toV8Value(args.Holder(), args.GetIsolate()));
 }
 
 void FileSystemNatives::GetFileEntry(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   DCHECK(args.Length() == 5);
   DCHECK(args[0]->IsString());
   std::string type_string = *v8::String::Utf8Value(args[0]->ToString());
   blink::WebFileSystemType type;
   bool is_valid_type = fileapi::GetFileSystemPublicType(type_string, &type);
   DCHECK(is_valid_type);
@@ skipping 18 matching lines @@
   blink::WebLocalFrame* webframe =
       blink::WebLocalFrame::frameForContext(context()->v8_context());
   DCHECK(webframe);
   args.GetReturnValue().Set(
       blink::WebDOMFileSystem::create(
           webframe,
           type,
           blink::WebString::fromUTF8(file_system_name),
           file_system_root_url)
           .createV8Entry(blink::WebString::fromUTF8(file_path_string),
-                         entry_type));
+                         entry_type,
+                         args.Holder(),
+                         args.GetIsolate()));
 }
 
 void FileSystemNatives::CrackIsolatedFileSystemName(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   DCHECK_EQ(args.Length(), 1);
   DCHECK(args[0]->IsString());
   std::string filesystem_name = *v8::String::Utf8Value(args[0]->ToString());
   std::string filesystem_id;
   if (!fileapi::CrackIsolatedFileSystemName(filesystem_name, &filesystem_id))
     return;
@@ skipping 26 matching lines @@
   }
   std::string message(*v8::String::Utf8Value(args[1]));
   // message is optional hence empty is fine.
 
   blink::WebDOMError dom_error = blink::WebDOMError::create(
       blink::WebString::fromUTF8(name), blink::WebString::fromUTF8(message));
   args.GetReturnValue().Set(dom_error.toV8Value());
 }
 
 }  // namespace extensions