base: Remove call to g_get_home_dir() from GetHomeDir() for Chrome OS

base/file_util_posix.cc

Index: base/file_util_posix.cc
diff --git a/base/file_util_posix.cc b/base/file_util_posix.cc
index 296950bebd8bd69d06ee978bcb5a56971643e971..a2dd19b97c439bd9a406af09526b6b1947b4e726 100644
--- a/base/file_util_posix.cc
+++ b/base/file_util_posix.cc
@@ -24,8 +24,8 @@
 #if defined(OS_MACOSX)
 #include <AvailabilityMacros.h>
 #include "base/mac/foundation_util.h"
-#elif !defined(OS_ANDROID)
-#include <glib.h>
+#elif !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
+#include <glib.h>  // for g_get_home_dir()
 #endif
 
 #include <fstream>
@@ -778,7 +778,7 @@ FilePath GetHomeDir() {
 
 #if defined(OS_ANDROID)
   DLOG(WARNING) << "OS_ANDROID: Home directory lookup not yet implemented.";
-#else
+#elif !defined(OS_CHROMEOS)
   // g_get_home_dir calls getpwent, which can fall through to LDAP calls.
   base::ThreadRestrictions::AssertIOAllowed();