log the click activate/deactive of translate icon on location bar

chrome/browser/ui/translate/translate_bubble_view_state_transition.h

Index: chrome/browser/ui/translate/translate_bubble_view_state_transition.h
diff --git a/chrome/browser/ui/translate/translate_bubble_view_state_transition.h b/chrome/browser/ui/translate/translate_bubble_view_state_transition.h
index d99bcf7d26a6009b3bf8b32ce10010d2d63118ee..5c0410c755192986c2e4dfd8bc5ffcb033e39de7 100644
--- a/chrome/browser/ui/translate/translate_bubble_view_state_transition.h
+++ b/chrome/browser/ui/translate/translate_bubble_view_state_transition.h
@@ -62,9 +62,17 @@ enum TranslateBubbleUiEvent {
   // The user changed the "Target language".
   TARGET_LANGUAGE_MENU_CLICKED,
 
+  // The user activate the translate page action icon.

[msw, 2016/05/12 17:29:41]

nit: activated

[ftang, 2016/05/12 18:38:08]

Done.

+  PAGE_ACTION_ICON_ACTIVATED,
+
+  // The user deactivate the translate page action icon.

[msw, 2016/05/12 17:29:41]

nit: deactivated

[ftang, 2016/05/12 18:38:08]

Done.

+  PAGE_ACTION_ICON_DEACTIVATED,
+
   TRANSLATE_BUBBLE_UI_EVENT_MAX
 };
 
+extern const char kTranslateBubbleUIEvent[];
+
 }  // namespace translate
 
 // The class which manages the transition of the view state of the Translate