ash: First pass of Applist v2.

ash/launcher/launcher.h

Index: ash/launcher/launcher.h
diff --git a/ash/launcher/launcher.h b/ash/launcher/launcher.h
index 7955b07f53d381e09a133fd8ac929bc49e696a72..3c11310a02007300a90119fbbf22f03949a748ed 100644
--- a/ash/launcher/launcher.h
+++ b/ash/launcher/launcher.h
@@ -20,6 +20,7 @@ class Rect;
 }
 
 namespace views {
+class View;
 class Widget;
 }
 
@@ -63,6 +64,8 @@ class ASH_EXPORT Launcher : public internal::BackgroundAnimatorDelegate {
   // Returns true if the Launcher is showing a context menu.
   bool IsShowingMenu() const;
 
+  views::View* GetAppListButtonView() const;
+
   // Only to be called for testing. Retrieves the LauncherView.
   // TODO(sky): remove this!
   internal::LauncherView* GetLauncherViewForTest();