Change over IgnoreReturn to IgnoreResult. remove IgnoreReturn.

chrome/browser/chromeos/customization_document.cc

Index: chrome/browser/chromeos/customization_document.cc
diff --git a/chrome/browser/chromeos/customization_document.cc b/chrome/browser/chromeos/customization_document.cc
index ea0484109c7d64e9b7fade1b88b3d3e87955f1fd..f0434de20414ebd18db8f9214f2159866b3df2bd 100644
--- a/chrome/browser/chromeos/customization_document.cc
+++ b/chrome/browser/chromeos/customization_document.cc
@@ -284,10 +284,11 @@ void ServicesCustomizationDocument::ReadFileInBackground(const FilePath& file) {
   std::string manifest;
   if (file_util::ReadFileToString(file, &manifest)) {
     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-        base::IgnoreReturn<bool>(base::Bind(
-            &ServicesCustomizationDocument::LoadManifestFromString,
-            base::Unretained(this),  // this class is a singleton.
-            manifest)));
+        base::Bind(
+           base::IgnoreResult(
+               &ServicesCustomizationDocument::LoadManifestFromString),
+           base::Unretained(this),  // this class is a singleton.
+           manifest));
   } else {
     VLOG(1) << "Failed to load services customization manifest from: "
             << file.value();