Bug 1029943 - Part 1 - Hide selection carets when blurred. r=roc

dom/base/nsFocusManager.cpp

@@ -36,6 +36,7 @@
 #include "nsIObjectFrame.h"
 #include "nsBindingManager.h"
 #include "nsStyleCoord.h"
+#include "SelectionCarets.h"
 
 #include "mozilla/ContentEvents.h"
 #include "mozilla/dom/Element.h"
@@ -1566,6 +1567,11 @@ nsFocusManager::Blur(nsPIDOMWindow* aWindowToClear,
     return true;
   }
 
+  nsRefPtr<SelectionCarets> selectionCarets = presShell->GetSelectionCarets();
+  if (selectionCarets) {
+    selectionCarets->SetVisibility(false);
+  }
+
   bool clearFirstBlurEvent = false;
   if (!mFirstBlurEvent) {
     mFirstBlurEvent = content;