[Mac] Omnibox icons active states

chrome/browser/ui/cocoa/omnibox_decoration_bubble_controller.mm

+// Copyright 2016 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/omnibox_decoration_bubble_controller.h"
+
+#import <Cocoa/Cocoa.h>
+
+#import "chrome/browser/ui/cocoa/browser_window_controller.h"
+#import "chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h"
+
+// Base bubble controller class.
+@implementation OmniboxDecorationBubbleController
+
+- (void)showWindow:(id)sender {
+  LocationBarDecoration* decoration = [self decorationForBubble];
+  if (decoration)
+    decoration->SetActive(true);
+
+  [super showWindow:sender];
+}
+
+- (void)close {
+  LocationBarDecoration* decoration = [self decorationForBubble];
+  if (decoration)
+    decoration->SetActive(false);
+
+  [super close];
+}
+
+- (LocationBarDecoration*)decorationForBubble {
+  NOTREACHED();
+  return nullptr;
+}
+
+@end