MacViews: Accessibility bridge

ui/views/cocoa/bridged_content_view.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 "ui/views/cocoa/bridged_content_view.h"
 
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
 #include "grit/ui_strings.h"
 #include "ui/base/ime/text_input_client.h"
@@ skipping 275 matching lines @@
 
 - (void)unmarkText {
   if (textInputClient_)
     textInputClient_->ConfirmCompositionText();
 }
 
 - (NSArray*)validAttributesForMarkedText {
   return @[];
 }
 
+// NSAccessibility informal protocol implementation.
+
+- (id)accessibilityAttributeValue:(NSString*)attribute {
+  if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) {
+    return @[ hostedView_->GetNativeViewAccessible() ];
+  }
+
+  return [super accessibilityAttributeValue:attribute];
+}
+
+- (id)accessibilityHitTest:(NSPoint)point {
+  return [hostedView_->GetNativeViewAccessible() accessibilityHitTest:point];
+}
+
 @end