[Extension UI Views] Add tests for clicking the different message bubble buttons

chrome/browser/ui/views/extensions/extension_message_bubble_view.cc

 // Copyright (c) 2013 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/extensions/extension_message_bubble_view.h"
 
 #include <utility>
 
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 22 matching lines @@
 const int kHeadlineRowPadding = 10;
 const int kMessageBubblePadding = 11;
 
 // How long to wait until showing the bubble (in seconds).
 int g_bubble_appearance_wait_time = 5;
 
 }  // namespace
 
 namespace extensions {
 
+ExtensionMessageBubbleView*
+    ExtensionMessageBubbleView::active_bubble_for_testing_ = nullptr;
+
 ExtensionMessageBubbleView::ExtensionMessageBubbleView(
     views::View* anchor_view,
     views::BubbleBorder::Arrow arrow_location,
     scoped_ptr<extensions::ExtensionMessageBubbleController> controller)
     : BubbleDelegateView(anchor_view, arrow_location),
       controller_(std::move(controller)),
       anchor_view_(anchor_view),
       headline_(NULL),
       learn_more_(NULL),
       dismiss_button_(NULL),
@@ skipping 17 matching lines @@
   // bubbles into the focus cycle). Another benefit of delaying the show is
   // that fade-in works (the fade-in isn't apparent if the the bubble appears at
   // startup).
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, base::Bind(&ExtensionMessageBubbleView::ShowBubble,
                             weak_factory_.GetWeakPtr()),
       base::TimeDelta::FromSeconds(g_bubble_appearance_wait_time));
 }
 
 void ExtensionMessageBubbleView::OnWidgetDestroying(views::Widget* widget) {
+  if (active_bubble_for_testing_ == this)
+    active_bubble_for_testing_ = nullptr;
   // To catch Esc, we monitor destroy message. Unless the link has been clicked,
   // we assume Dismiss was the action taken.
   if (!link_clicked_ && !action_taken_) {
     bool closed_on_deactivation = close_reason() == CloseReason::DEACTIVATION;
     controller_->OnBubbleDismiss(closed_on_deactivation);
   }
 }
 
 void ExtensionMessageBubbleView::set_bubble_appearance_wait_time_for_testing(
     int time_in_seconds) {
   g_bubble_appearance_wait_time = time_in_seconds;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ExtensionMessageBubbleView - private.
 
 ExtensionMessageBubbleView::~ExtensionMessageBubbleView() {}
 
 void ExtensionMessageBubbleView::ShowBubble() {
+  active_bubble_for_testing_ = this;
   // Since we delay in showing the bubble, the applicable extension(s) may
   // have been removed.
   if (controller_->ShouldShow()) {
     controller_->OnShown();
     GetWidget()->Show();
   } else {
     GetWidget()->Close();
   }
 }
 
@@ skipping 117 matching lines @@
   state->role = ui::AX_ROLE_ALERT;
 }
 
 void ExtensionMessageBubbleView::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (details.is_add && details.child == this)
     NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
 }
 
 }  // namespace extensions