mac rtl: pin profile switcher to left edge in rtl

chrome/browser/ui/cocoa/l10n_util.mm

Index: chrome/browser/ui/cocoa/l10n_util.mm
diff --git a/chrome/browser/ui/cocoa/l10n_util.mm b/chrome/browser/ui/cocoa/l10n_util.mm
index 5f101279c971a1a72d392d0d5bb0fbb892323a89..fc734d4f0530e3a695b8e174475eafde7c9290a5 100644
--- a/chrome/browser/ui/cocoa/l10n_util.mm
+++ b/chrome/browser/ui/cocoa/l10n_util.mm
@@ -5,6 +5,7 @@
 #import "chrome/browser/ui/cocoa/l10n_util.h"
 
 #include "base/feature_list.h"
+#include "base/i18n/rtl.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #import "third_party/google_toolbox_for_mac/src/AppKit/GTMUILocalizerAndLayoutTweaker.h"
@@ -87,7 +88,8 @@ CGFloat VerticallyReflowGroup(NSArray* views) {
                                         base::FEATURE_DISABLED_BY_DEFAULT};
 
 bool ExperimentalMacRTLIsEnabled() {
-  return base::FeatureList::IsEnabled(kExperimentalMacRTL);
+  return base::i18n::IsRTL() &&
+         base::FeatureList::IsEnabled(kExperimentalMacRTL);
 }
 
 }  // namespace cocoa_l10n_util