Updates to base unittests so they run correctly in libchrome on Android

base/files/file_path_unittest.cc

Index: base/files/file_path_unittest.cc
diff --git a/base/files/file_path_unittest.cc b/base/files/file_path_unittest.cc
index 60eaa8f002f2e1103ad78dfc6fdaf4f5b7849bb0..f988bd6d508ce3e9c76ac45a1f5e53d66364daf6 100644
--- a/base/files/file_path_unittest.cc
+++ b/base/files/file_path_unittest.cc
@@ -7,6 +7,7 @@
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/test/scoped_locale.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
@@ -1126,6 +1127,10 @@ TEST_F(FilePathTest, FromUTF8Unsafe_And_AsUTF8Unsafe) {
       "\xEF\xBC\xA1\xEF\xBC\xA2\xEF\xBC\xA3.txt" },
   };
 
+#if !defined(SYSTEM_NATIVE_UTF8)
+  ScopedLocale locale("en_US.UTF-8");
+#endif
+
   for (size_t i = 0; i < arraysize(cases); ++i) {
     // Test FromUTF8Unsafe() works.
     FilePath from_utf8 = FilePath::FromUTF8Unsafe(cases[i].utf8);