MacViews: Enable some accelerator tests.

ui/views/cocoa/bridged_content_view.h

Index: ui/views/cocoa/bridged_content_view.h
diff --git a/ui/views/cocoa/bridged_content_view.h b/ui/views/cocoa/bridged_content_view.h
index f6952a25e80dd9c7a712cc9e24458632e715e6c1..6dbdb23bacc5fedb5cb8277910b3c7b06c4bb9ea 100644
--- a/ui/views/cocoa/bridged_content_view.h
+++ b/ui/views/cocoa/bridged_content_view.h
@@ -7,6 +7,7 @@
 
 #import <Cocoa/Cocoa.h>
 
+#include "base/optional.h"
 #include "base/strings/string16.h"
 #import "ui/base/cocoa/tool_tip_base_view.h"
 #import "ui/base/cocoa/tracking_area.h"
@@ -39,6 +40,13 @@ class View;
   // The keyDown event currently being handled, nil otherwise.
   NSEvent* keyDownEvent_;
 
+  // The performKeyEquivalent event currently being handled, nil otherwise.
+  NSEvent* performKeyEquivalentEvent_;
+
+  // Holds non-null result of trying to handle the |performKeyEquivalentEvent_|
+  // using handleKeyEvent:.
+  base::Optional<BOOL> performKeyEquivalentEventHandled_;
+
   // The last tooltip text, used to limit updates.
   base::string16 lastTooltipText_;