Makes permission bubble properly handle browser-type keyboard events.

chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.h"
 
 #include <algorithm>
 
 #include "base/mac/bind_objc_block.h"
 #include "base/mac/foundation_util.h"
@@ skipping 109 matching lines @@
     // Adjust the size to fit the current title.  Using only -sizeToFit leaves
     // an ugly amount of whitespace between the title and the arrows because it
     // will fit to the largest element in the menu, not just the selected item.
     [self setFrameSize:SizeForWebsiteSettingsButtonTitle(self, [self title])];
   }
   return self;
 }
 
 @end
 
+// The window used for the permission bubble controller.
+// Subclassed to allow browser-handled keyboard events to be passed from the
+// permission bubble to its parent window, which is a browser window.

[groby-ooo-7-16, 2014/05/02 01:43:25]

If the parent window is a browser window, I believe what you want is 

NativeWebKeyboardEvent wrappedEvent(event)
if ([BrowserWindowUtils shouldHandleKeyboardEvent:wrappedEvent])
    [BrowserWindowUtils handleKeyboardEvent:event inWindow:[self parentWindow]];

This allows you to handle menu shortcuts, as well.

[leng, 2014/05/02 16:24:58]

Thanks, done.

+@interface PermissionBubbleWindow : InfoBubbleWindow
+@end
+
+@implementation PermissionBubbleWindow
+- (BOOL)performKeyEquivalent:(NSEvent*)event {
+  ChromeEventProcessingWindow* eventWindow =
+      base::mac::ObjCCastStrict<ChromeEventProcessingWindow>(
+          [self parentWindow]);
+  return [eventWindow performKeyEquivalent:event];
+}
+@end
+
 @interface PermissionBubbleController ()
 
 // Returns an autoreleased NSView displaying the icon and label for |request|.
 - (NSView*)labelForRequest:(PermissionBubbleRequest*)request;
 
 // Returns an autoreleased NSView displaying the title for the bubble
 // requesting settings for |host|.
 - (NSView*)titleWithHostname:(const std::string&)host;
 
 // Returns an autoreleased NSView displaying a menu for |request|.  The
@@ skipping 43 matching lines @@
 + (void)alignCenterOf:(NSView*)viewA verticallyToCenterOf:(NSView*)viewB;
 
 @end
 
 @implementation PermissionBubbleController
 
 - (id)initWithParentWindow:(NSWindow*)parentWindow
                     bridge:(PermissionBubbleCocoa*)bridge {
   DCHECK(parentWindow);
   DCHECK(bridge);
-  base::scoped_nsobject<InfoBubbleWindow> window([[InfoBubbleWindow alloc]
-      initWithContentRect:ui::kWindowSizeDeterminedLater
-                styleMask:NSBorderlessWindowMask
-                  backing:NSBackingStoreBuffered
-                    defer:NO]);
+  base::scoped_nsobject<PermissionBubbleWindow> window(
+      [[PermissionBubbleWindow alloc]
+          initWithContentRect:ui::kWindowSizeDeterminedLater
+                    styleMask:NSBorderlessWindowMask
+                      backing:NSBackingStoreBuffered
+                        defer:NO]);
   [window setAllowedAnimations:info_bubble::kAnimateNone];
   if ((self = [super initWithWindow:window
                        parentWindow:parentWindow
                          anchoredAt:NSZeroPoint])) {
     [self setShouldCloseOnResignKey:NO];
     [[self bubble] setArrowLocation:info_bubble::kTopLeft];
     NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
     [nc addObserver:self
            selector:@selector(parentWindowDidResize:)
                name:NSWindowDidResizeNotification
@@ skipping 327 matching lines @@
 
 + (void)alignCenterOf:(NSView*)viewA verticallyToCenterOf:(NSView*)viewB {
   NSRect frameA = [viewA frame];
   NSRect frameB = [viewB frame];
   frameA.origin.y =
       NSMinY(frameB) + std::floor((NSHeight(frameB) - NSHeight(frameA)) / 2);
   [viewA setFrameOrigin:frameA.origin];
 }
 
 @end  // implementation PermissionBubbleController