Makes the launcher auto-hide for maximized windows. This turned out to

ash/screen_ash.cc

Index: ash/screen_ash.cc
diff --git a/ash/screen_ash.cc b/ash/screen_ash.cc
index f512ff6dbacf066545e3fd6f8885b3347ff5549e..ad679a15615b645dd62882635741f37f52b2bd96 100644
--- a/ash/screen_ash.cc
+++ b/ash/screen_ash.cc
@@ -4,6 +4,8 @@
 
 #include "ash/screen_ash.h"
 
+#include "ash/shell.h"
+#include "ash/wm/shelf_layout_manager.h"
 #include "base/logging.h"
 #include "ui/aura/env.h"
 #include "ui/aura/monitor.h"
@@ -29,6 +31,16 @@ ScreenAsh::ScreenAsh(aura::RootWindow* root_window)
 ScreenAsh::~ScreenAsh() {
 }
 
+// static
+gfx::Rect ScreenAsh::GetMaximizedWindowBounds(aura::Window* window) {
+  return Shell::GetInstance()->shelf()->GetMaximizedWindowBounds(window);
+}
+
+// static
+gfx::Rect ScreenAsh::GetUnmaximizedWorkAreaBounds(aura::Window* window) {
+  return Shell::GetInstance()->shelf()->GetUnmaximizedWorkAreaBounds(window);
+}
+
 gfx::Point ScreenAsh::GetCursorScreenPointImpl() {
   return root_window_->last_mouse_location();
 }