Support AXContents attribute on the RenderWidgetHostViewCocoa.

BUG=none.
TEST=none.
Review URL: http://codereview.chromium.org/5097001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@66382 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 13 insertions, 1 deletions

diff --git a/chrome/browser/renderer_host/render_widget_host_view_mac.mm b/chrome/browser/renderer_host/render_widget_host_view_mac.mm
index d8cd696..40761ae 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/chrome/browser/renderer_host/render_widget_host_view_mac.mm
@@ -1781,7 +1781,12 @@ void RenderWidgetHostViewMac::SetTextInputActive(bool active) {
 - (id)accessibilityAttributeValue:(NSString *)attribute {
   BrowserAccessibilityManager* manager =
       renderWidgetHostView_->browser_accessibility_manager_.get();
-  if ([attribute isEqualToString:NSAccessibilityChildrenAttribute] &&
+
+  // Contents specifies document view of RenderWidgetHostViewCocoa provided by
+  // BrowserAccessibilityManager. Children includes all subviews in addition to
+  // contents. Currently we do not have subviews besides the document view.
+  if (([attribute isEqualToString:NSAccessibilityChildrenAttribute] ||
+          [attribute isEqualToString:NSAccessibilityContentsAttribute]) &&
       manager) {
     return [NSArray arrayWithObjects:manager->
         GetRoot()->toBrowserAccessibilityCocoa(), nil];
@@ -1792,6 +1797,13 @@ void RenderWidgetHostViewMac::SetTextInputActive(bool active) {
   return ret;
 }
 
+- (NSArray*)accessibilityAttributeNames {
+  NSMutableArray* ret = [[[NSMutableArray alloc] init] autorelease];
+  [ret addObject:NSAccessibilityContentsAttribute];
+  [ret addObjectsFromArray:[super accessibilityAttributeNames]];
+  return ret;
+}
+
 - (id)accessibilityHitTest:(NSPoint)point {
   if (!renderWidgetHostView_->browser_accessibility_manager_.get())
     return self;