Added tab notification to accessibility_event_router_views.

chrome/browser/ui/views/tabs/tab_strip.cc

Index: chrome/browser/ui/views/tabs/tab_strip.cc
diff --git a/chrome/browser/ui/views/tabs/tab_strip.cc b/chrome/browser/ui/views/tabs/tab_strip.cc
index 42835490b6401cedfaf0876b52a6c1977048510f..a7b062597837b1b6614a1d5dbea9774477a6c516 100644
--- a/chrome/browser/ui/views/tabs/tab_strip.cc
+++ b/chrome/browser/ui/views/tabs/tab_strip.cc
@@ -1183,6 +1183,12 @@ bool TabStrip::IsImmersiveStyle() const {
   return immersive_style_;
 }
 
+void TabStrip::UpdateTabAccessibilityState(const Tab* tab,
+                                                ui::AXViewState* state) {

[sky, 2014/07/23 17:38:42]

nit: indentation.

[evy, 2014/07/23 18:44:11]

Done.

+  state->count = tab_count();
+  state->index = GetModelIndexOfTab(tab);

[sky, 2014/07/23 17:38:42]

Do you care if this returns -1?

[evy, 2014/07/23 18:44:11]

Is there a case where the user hovers over/touches an existing tab and the index
is -1?
And in this case, I think the speech would say "tab 0 of $COUNT" - do you think
we should do something to change what's read in this case?

+}
+
 void TabStrip::MouseMovedOutOfHost() {
   ResizeLayoutTabs();
   if (reset_to_shrink_on_exit_) {