Update CrOS to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/google/google_util_chromeos.cc

Index: chrome/browser/google/google_util_chromeos.cc
diff --git a/chrome/browser/google/google_util_chromeos.cc b/chrome/browser/google/google_util_chromeos.cc
index fc265d17af8ba1dcece5e70159fb05e9f8d2afad..b39d910ef396008739fe2cb7feda743b551a10b6 100644
--- a/chrome/browser/google/google_util_chromeos.cc
+++ b/chrome/browser/google/google_util_chromeos.cc
@@ -64,7 +64,7 @@ std::string GetBrand() {
 
 void SetBrandFromFile(const base::Closure& callback) {
   base::PostTaskAndReplyWithResult(
-      base::WorkerPool::GetTaskRunner(false /* task_is_slow */),
+      base::WorkerPool::GetTaskRunner(false /* task_is_slow */).get(),
       FROM_HERE,
       base::Bind(&ReadBrandFromFile),
       base::Bind(&SetBrand, callback));