Reverse bookmark buttons and menus in RTL

chrome/browser/ui/cocoa/l10n_util.h

Index: chrome/browser/ui/cocoa/l10n_util.h
diff --git a/chrome/browser/ui/cocoa/l10n_util.h b/chrome/browser/ui/cocoa/l10n_util.h
index a7d8a8069652f35ec6f90a85f348fb7419e0b50c..dfab8680e14ada13b736d3fa281b065597fa3a37 100644
--- a/chrome/browser/ui/cocoa/l10n_util.h
+++ b/chrome/browser/ui/cocoa/l10n_util.h
@@ -49,4 +49,17 @@ bool ShouldDoExperimentalRTLLayout();
 // OSes would make Chrome stick out.
 bool ShouldFlipWindowControlsInRTL();
 
+// TODO(lgrey): Remove these when all builds are on 10.12 SDK.
+
+// Returns NSImageLeading when available (10.12+), otherwise
+// NSImageLeft for LTR and NSImageRight in RTL.
+NSCellImagePosition LeadingCellImagePosition();
+// Returns NSImageTrailing when available (10.12+), otherwise
+// NSImageRight for LTR and NSImageLeft in RTL.
+NSCellImagePosition TrailingCellImagePosition();
+
+// Returns an autoreleased image containing |image| flipped
+// across the x axis.
+NSImage* FlippedImage(NSImage* image);
+
 }  // namespace cocoa_l10n_util