[MacViews] Use ChromeCommandDispatcherDelegate to handle keyboard shortcuts.

chrome/browser/ui/views/frame/browser_frame_mac.h

Index: chrome/browser/ui/views/frame/browser_frame_mac.h
diff --git a/chrome/browser/ui/views/frame/browser_frame_mac.h b/chrome/browser/ui/views/frame/browser_frame_mac.h
index 8e9b5924b974b3087ac4dc9b6c4663a4f6b20b22..65f315ddc93df8e504b6558274381184db37443a 100644
--- a/chrome/browser/ui/views/frame/browser_frame_mac.h
+++ b/chrome/browser/ui/views/frame/browser_frame_mac.h
@@ -6,10 +6,13 @@
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_MAC_H_
 
 #include "chrome/browser/ui/views/frame/native_browser_frame.h"
+
+#import "base/mac/scoped_nsobject.h"
 #include "ui/views/widget/native_widget_mac.h"
 
 class BrowserFrame;
 class BrowserView;
+@class ChromeCommandDispatcherDelegate;
 
 ////////////////////////////////////////////////////////////////////////////////
 //  BrowserFrameMac is a NativeWidgetMac subclass that provides
@@ -36,7 +39,7 @@ class BrowserFrameMac : public views::NativeWidgetMac,
   ~BrowserFrameMac() override;
 
   // Overridden from views::NativeWidgetMac:
-  gfx::NativeWindow CreateNSWindow(
+  NativeWidgetMacNSWindow* CreateNSWindow(
       const views::Widget::InitParams& params) override;
 
   // Overridden from NativeBrowserFrame:
@@ -44,6 +47,8 @@ class BrowserFrameMac : public views::NativeWidgetMac,
 
  private:
   BrowserView* browser_view_;  // Weak. Our ClientView.
+  base::scoped_nsobject<ChromeCommandDispatcherDelegate>
+      command_dispatcher_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserFrameMac);
 };