[Mac] Polish the infobars.

chrome/browser/ui/cocoa/translate/before_translate_infobar_controller.mm

Index: chrome/browser/ui/cocoa/translate/before_translate_infobar_controller.mm
diff --git a/chrome/browser/ui/cocoa/translate/before_translate_infobar_controller.mm b/chrome/browser/ui/cocoa/translate/before_translate_infobar_controller.mm
index 16b5e3f583daf2747828c6388058f5a6a7be64a3..463edf0eb237b6af848b820ec9b3b2ac6fc8c8de 100644
--- a/chrome/browser/ui/cocoa/translate/before_translate_infobar_controller.mm
+++ b/chrome/browser/ui/cocoa/translate/before_translate_infobar_controller.mm
@@ -19,6 +19,10 @@ NSButton* CreateNSButtonWithResourceIDAndParameter(
   NSButton* button = [[NSButton alloc] init];
   [button setTitle:base::SysUTF16ToNSString(title)];
   [button setBezelStyle:NSTexturedRoundedBezelStyle];
+  // Round textured buttons have a different font size than the default button.
+  NSFont* font = [NSFont systemFontOfSize:
+      [NSFont systemFontSizeForControlSize:NSRegularControlSize]];
+  [[button cell] setFont:font];
   return button;
 }