Added battery level and time to the status tray's accessible name.

ash/system/tray/system_tray.cc

Index: ash/system/tray/system_tray.cc
diff --git a/ash/system/tray/system_tray.cc b/ash/system/tray/system_tray.cc
index 5c6af2ce30da634886aa8cbdad624d3e1522a86f..bc3a377e1b93344a5dc55819d515dceaeae43cd7 100644
--- a/ash/system/tray/system_tray.cc
+++ b/ash/system/tray/system_tray.cc
@@ -588,6 +588,14 @@ void SystemTray::UpdateWebNotifications() {
   status_area_widget()->web_notification_tray()->SetSystemTrayHeight(height);
 }
 
+base::string16 SystemTray::GetAccessibleTimeString(
+    const base::Time& now) const {
+  base::HourClockType hour_type =
+      ash::Shell::GetInstance()->system_tray_delegate()->GetHourClockType();
+  return base::TimeFormatTimeOfDayWithHourClockType(

[Peter Lundblad, 2014/07/09 23:08:11]

Just to make sure, can you try this with the setting for 24 hour time instead of
12 hour time.

[evy, 2014/07/10 17:19:57]

24 hour time is read very strange (oh nine. one one.)
But this is a thing that already happened in the current status tray time
reading, and Dominic said it's probably out of our project scope.
However, nothing breaks - so that's good!
I think I'll have it read the word time before it reads the time, so that it's
clear that "oh nine. one one." is a time.

+      now, hour_type, base::kKeepAmPm);
+}
+
 void SystemTray::SetShelfAlignment(ShelfAlignment alignment) {
   if (alignment == shelf_alignment())
     return;
@@ -616,7 +624,13 @@ void SystemTray::AnchorUpdated() {
 }
 
 base::string16 SystemTray::GetAccessibleNameForTray() {
-  return l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_ACCESSIBLE_NAME);
+  base::string16 name =
+      l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_ACCESSIBLE_NAME);
+  base::string16 time = GetAccessibleTimeString(base::Time::Now());
+  base::string16 battery = PowerStatus::Get()->GetShortAccessibleNameString();
+  return name + base::ASCIIToUTF16(". ") +

[dmazzoni, 2014/07/10 16:23:16]

This is borderline, but this is usually the best practice for string combining,
rather than concatenating.

l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_ACCESSIBLE_DESCRIPTION,
  PowerStatus::Get()->GetShortAccessibleNameString(),
  GetAccessibleTimeString(base::Time::Now())

where the string is something like:

"Status tray, $1, current time $2"

[evy, 2014/07/10 17:19:57]

Done.

+         time + base::ASCIIToUTF16(". ") +
+         battery;
 }
 
 void SystemTray::BubbleResized(const TrayBubbleView* bubble_view) {