Remaining cleanup (base::Bind): Replacing FileUtilProxy calls with new callback

content/renderer/pepper_plugin_delegate_impl.cc

Index: content/renderer/pepper_plugin_delegate_impl.cc
diff --git a/content/renderer/pepper_plugin_delegate_impl.cc b/content/renderer/pepper_plugin_delegate_impl.cc
index 35fc894bdbdf8fa579743e198afcdf54c9ff3c84..d5727b3eb5b185c1233f51fef925e15282de8e94 100644
--- a/content/renderer/pepper_plugin_delegate_impl.cc
+++ b/content/renderer/pepper_plugin_delegate_impl.cc
@@ -1041,7 +1041,10 @@ void PepperPluginDelegateImpl::OnAsyncFileOpened(
   callback->Run(error_code, base::PassPlatformFile(&file));
   // Make sure we won't leak file handle if the requester has died.
   if (file != base::kInvalidPlatformFileValue)
-    base::FileUtilProxy::Close(GetFileThreadMessageLoopProxy(), file, NULL);
+    GetFileThreadMessageLoopProxy()->PostTask(
+          FROM_HERE,
+          base::IgnoreReturn(base::Callback<bool(void)>(
+              base::Bind(&base::ClosePlatformFile, file))));
   delete callback;
 }
 
@@ -1254,8 +1257,10 @@ class AsyncOpenFileSystemURLCallbackTranslator
     callback_.Run(base::PLATFORM_FILE_OK, base::PassPlatformFile(&file));
     // Make sure we won't leak file handle if the requester has died.
     if (file != base::kInvalidPlatformFileValue) {
-      base::FileUtilProxy::Close(RenderThreadImpl::current()->
-          GetFileThreadMessageLoopProxy(), file, NULL);
+      RenderThreadImpl::current()->GetFileThreadMessageLoopProxy()->PostTask(
+          FROM_HERE,
+          base::IgnoreReturn(base::Callback<bool(void)>(
+              base::Bind(&base::ClosePlatformFile, file))));
     }
   }