Give the system tray an accessible role and name so that something

appropriate is announced when it's focused.

BUG=119238
TEST=enable accessibility, click on system tray


Review URL: http://codereview.chromium.org/9815027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@128173 0039d316-1c4b-4281-b951-d872f2087c98

ash/ash_strings.grd

@@ -175,6 +175,9 @@ This file contains the strings for ash.
       </message>
 
       <!-- Status tray items -->
+      <message name="IDS_ASH_STATUS_TRAY_ACCESSIBLE_NAME" desc="The accessible name of the status tray.">
+        Status tray
+      </message>
       <message name="IDS_ASH_STATUS_TRAY_SETTINGS_AND_HELP" desc="The label used for the help-and-settings item in the status tray.">
         Settings and Help
       </message>

ash/system/tray/system_tray.cc

@@ -17,10 +17,13 @@
 #include "base/logging.h"
 #include "base/timer.h"
 #include "base/utf_string_conversions.h"
+#include "grit/ash_strings.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/core/SkPath.h"
+#include "ui/base/accessibility/accessible_view_state.h"
+#include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/views/border.h"
@@ -335,6 +338,13 @@ class SystemTrayBubble : public views::BubbleDelegateView {
     }
   }
 
+  // Overridden from views::View.
+  virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE {
+    state->role = ui::AccessibilityTypes::ROLE_WINDOW;
+    state->name = l10n_util::GetStringUTF16(
+        IDS_ASH_STATUS_TRAY_ACCESSIBLE_NAME);
+  }
+
   virtual bool CanActivate() const OVERRIDE {
     return can_activate_;
   }

chrome/browser/ui/views/accessibility_event_router_views.cc

@@ -135,6 +135,7 @@ void AccessibilityEventRouterViews::DispatchAccessibilityNotification(
   view->GetAccessibleState(&state);
   switch (state.role) {
   case ui::AccessibilityTypes::ROLE_ALERT:
+  case ui::AccessibilityTypes::ROLE_WINDOW:
     SendWindowNotification(view, type, profile);
     break;
   case ui::AccessibilityTypes::ROLE_BUTTONMENU: