Adds the option of aligning the launcher to the left or right. There

ash/launcher/launcher.h

Index: ash/launcher/launcher.h
diff --git a/ash/launcher/launcher.h b/ash/launcher/launcher.h
index e244d4c594f65e5411f653cc818469ba7b665ffc..385d78212ff9bed79bebbecc50541d9361629c5b 100644
--- a/ash/launcher/launcher.h
+++ b/ash/launcher/launcher.h
@@ -8,8 +8,10 @@
 
 #include "ash/ash_export.h"
 #include "ash/launcher/background_animator.h"
+#include "ash/wm/shelf_auto_hide_behavior.h"
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "ui/gfx/size.h"
 
 namespace aura {
 class Window;
@@ -44,15 +46,18 @@ class ASH_EXPORT Launcher : public internal::BackgroundAnimatorDelegate {
   void SetFocusCycler(internal::FocusCycler* focus_cycler);
   internal::FocusCycler* GetFocusCycler();
 
+  void SetAlignment(ShelfAlignment alignment);
+  ShelfAlignment alignment() const { return alignment_; }
+
   // Sets whether the launcher paints a background. Default is false, but is set
   // to true if a window overlaps the shelf.
   void SetPaintsBackground(
       bool value,
       internal::BackgroundAnimator::ChangeType change_type);
 
-  // Sets the width of the status area.
-  void SetStatusWidth(int width);
-  int GetStatusWidth();
+  // Sets the size of the status area.
+  void SetStatusSize(const gfx::Size& size);
+  const gfx::Size& status_size() const { return status_size_; }
 
   // Returns the screen bounds of the item for the specified window. If there is
   // no item for the specified window an empty rect is returned.
@@ -96,8 +101,13 @@ class ASH_EXPORT Launcher : public internal::BackgroundAnimatorDelegate {
   // LauncherView used to display icons.
   internal::LauncherView* launcher_view_;
 
+  ShelfAlignment alignment_;
+
   scoped_ptr<LauncherDelegate> delegate_;
 
+  // Size reserved for the status area.
+  gfx::Size status_size_;
+
   // Used to animate the background.
   internal::BackgroundAnimator background_animator_;