Makes it so the launcher only gets focus when using the keyboard.

ash/launcher/launcher.h

Index: ash/launcher/launcher.h
diff --git a/ash/launcher/launcher.h b/ash/launcher/launcher.h
index f910367053991e7705c646d3801153f210571308..9404d2bbcde67d5abba14e90b4793ae90a62f1c6 100644
--- a/ash/launcher/launcher.h
+++ b/ash/launcher/launcher.h
@@ -20,6 +20,10 @@ class Widget;
 
 namespace ash {
 
+namespace internal {
+class FocusCycler;
+}
+
 class LauncherDelegate;
 class LauncherModel;
 
@@ -28,6 +32,9 @@ class ASH_EXPORT Launcher {
   explicit Launcher(aura::Window* window_container);
   ~Launcher();
 
+  // Sets the focus cycler.
+  void SetFocusCycler(const internal::FocusCycler* focus_cycler);
+
   // Sets the width of the status area.
   void SetStatusWidth(int width);
   int GetStatusWidth();