Fire an alert event to notify accessibility when a permissions bubble gets shown.

chrome/browser/ui/views/website_settings/permissions_bubble_view.cc

 // 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.
 
 #include "chrome/browser/ui/views/website_settings/permissions_bubble_view.h"
 
 #include "base/prefs/pref_service.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 427 matching lines @@
       new PermissionsBubbleDelegateView(
           GetAnchorView(), GetAnchorArrow(), this,
           browser_->profile()->GetPrefs()->GetString(prefs::kAcceptLanguages),
           requests, values);
 
   // Set |parent_window| because some valid anchors can become hidden.
   bubble_delegate_->set_parent_window(browser_->window()->GetNativeWindow());
 
   views::BubbleDelegateView::CreateBubble(bubble_delegate_)->Show();
   bubble_delegate_->SizeToContents();
+  bubble_delegate_->NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);

[dmazzoni, 2015/04/02 20:29:20]

I think you should do this in ui/views/bubble/bubble_delegate.cc instead. Have
CreateBubbleWidget return a subclass of Widget instead, and have it fire an
alert event on Show().

[David Tseng, 2015/04/02 22:46:58]

Not sure what you mean. I moved the alert notification to
HandleVisibilityChanged inside of BubbleDelegate.

 }
 
 bool PermissionBubbleViewViews::CanAcceptRequestUpdate() {
   return !(bubble_delegate_ && bubble_delegate_->IsMouseHovered());
 }
 
 void PermissionBubbleViewViews::Hide() {
   if (bubble_delegate_) {
     bubble_delegate_->Close();
     bubble_delegate_ = nullptr;
@@ skipping 18 matching lines @@
 
 void PermissionBubbleViewViews::Accept() {
   if (delegate_)
     delegate_->Accept();
 }
 
 void PermissionBubbleViewViews::Deny() {
   if (delegate_)
     delegate_->Deny();
 }