mac: Create a static mapping of accelerators in the main menu.

ui/events/keycodes/keyboard_code_conversion_mac.h

Index: ui/events/keycodes/keyboard_code_conversion_mac.h
diff --git a/ui/events/keycodes/keyboard_code_conversion_mac.h b/ui/events/keycodes/keyboard_code_conversion_mac.h
index 719c922d1395d933ea0df607c5c948f1968f91d4..542ba14fe517fdb351d9c033f31a62e62ce1b2e3 100644
--- a/ui/events/keycodes/keyboard_code_conversion_mac.h
+++ b/ui/events/keycodes/keyboard_code_conversion_mac.h
@@ -16,8 +16,8 @@ namespace ui {
 // We use windows virtual keycodes throughout our keyboard event related code,
 // including unit tests. But Mac uses a different set of virtual keycodes.
 // This function converts a windows virtual keycode into Mac's virtual key code
-// and corresponding unicode character. |flags| is the modifiers mask such
-// as NSControlKeyMask, NSShiftKeyMask, etc.
+// and corresponding unicode character. |flags| is the cocoa modifiers mask

[Robert Sesek, 2014/02/11 16:19:48]

nit: Cocoa is a proper noun

[erikchen, 2014/02/11 19:42:27]

Done.

+// such as NSControlKeyMask, NSShiftKeyMask, etc.
 // When success, the corresponding Mac's virtual key code will be returned.
 // The corresponding unicode character will be stored in |character|, and the
 // corresponding unicode character ignoring the modifiers will be stored in