Set the initial focus when the task manager first activates and shows. Also,...

Set the initial focus when the task manager first activates and shows.  Also, send our custom accessibility events in NativeControl's Focus() method.
BUG=50401
TEST=interactive UI tests BrowserKeyboardAccessibility.TabInTaskManager
Review URL: http://codereview.chromium.org/3038031

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@53959 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/views/task_manager_view.cc

@@ -484,6 +484,11 @@ void TaskManagerView::Show() {
     instance_->InitAlwaysOnTopState();
     instance_->model_->StartUpdating();
     instance_->window()->Show();
+
+    // Set the initial focus to the list of tasks.
+    views::FocusManager* focus_manager = instance_->GetFocusManager();
+    if (focus_manager)
+      focus_manager->SetFocusedView(instance_->tab_table_);
   }
 }
 

views/controls/native_control.cc

@@ -270,6 +270,7 @@ void NativeControl::Focus() {
   if (container_) {
     DCHECK(container_->GetControl());
     ::SetFocus(container_->GetControl());
+    NotifyAccessibilityEvent(AccessibilityTypes::EVENT_FOCUS);
   }
 }