ash: Rename "Autohide launcher" item.

ash/launcher/overflow_button.cc

Index: ash/launcher/overflow_button.cc
diff --git a/ash/launcher/overflow_button.cc b/ash/launcher/overflow_button.cc
index 1a4ad3ad57cc68b6727f8982d315b56d5f6cf672..884746892f982c4b96b8c71ae32cdf87c40a68a4 100644
--- a/ash/launcher/overflow_button.cc
+++ b/ash/launcher/overflow_button.cc
@@ -55,13 +55,10 @@ OverflowButton::OverflowButton(views::ButtonListener* listener)
   image_ = rb.GetImageNamed(IDR_AURA_LAUNCHER_OVERFLOW).ToImageSkia();
 
   set_accessibility_focusable(true);
-  SetAccessibleName(
-      l10n_util::GetStringUTF16(IDS_AURA_LAUNCHER_OVERFLOW_NAME));
+  SetAccessibleName(l10n_util::GetStringUTF16(IDS_ASH_SHELF_OVERFLOW_NAME));
 }
 
-
-OverflowButton::~OverflowButton() {
-}
+OverflowButton::~OverflowButton() {}
 
 void OverflowButton::OnShelfAlignmentChanged() {
   SchedulePaint();