Aura: Add --aura-laptop-mode to fill the workspace with a single window.

ui/aura_shell/shelf_layout_manager.h

Index: ui/aura_shell/shelf_layout_manager.h
diff --git a/ui/aura_shell/shelf_layout_manager.h b/ui/aura_shell/shelf_layout_manager.h
index 2c46867ba3fdf42f5f39e06d09370a063d5f8592..8386cb6a4ccf650918121373346ca841f91d8cf1 100644
--- a/ui/aura_shell/shelf_layout_manager.h
+++ b/ui/aura_shell/shelf_layout_manager.h
@@ -36,7 +36,7 @@ class ShelfLayoutManager : public aura::LayoutManager,
   // widgets.
   void LayoutShelf();
 
-  // Sets the visbility of the shelf to |visible|.
+  // Sets the visibility of the shelf to |visible|.
   void SetVisible(bool visible);
 
   // Overridden from aura::LayoutManager:
@@ -58,7 +58,7 @@ class ShelfLayoutManager : public aura::LayoutManager,
   // Stops any animations.
   void StopAnimating();
 
-  // Calculates the target bounds assuming visibility of |visibile|.
+  // Calculates the target bounds assuming visibility of |visible|.
   void CalculateTargetBounds(bool visible,
                              TargetBounds* target_bounds);