Introduce system_info as an independent container.

athena/wm/window_overview_mode.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "athena/wm/window_overview_mode.h"
 
 #include <complex>
 #include <vector>
 
+#include "athena/util/athena_constants.h"
 #include "athena/wm/overview_toolbar.h"
 #include "athena/wm/public/window_list_provider.h"
 #include "athena/wm/public/window_list_provider_observer.h"
 #include "athena/wm/split_view_controller.h"
 #include "base/bind.h"
 #include "base/memory/scoped_vector.h"
 #include "ui/aura/scoped_window_targeter.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/aura/window_property.h"
@@ skipping 336 matching lines @@
   // Computes the terminal states (i.e. the transforms for the top-most and
   // bottom-most position in the stack) for |window|. |window_count| is the
   // number of windows in the stack, and |index| is the position of the window
   // in the stack (0 being the front-most window).
   void UpdateTerminalStateForWindowAtIndex(aura::Window* window,
                                            size_t index,
                                            size_t window_count) {
     const int kGapBetweenWindowsBottom = 10;
     const int kGapBetweenWindowsTop = 5;
 
-    int top = (window_count - index - 1) * kGapBetweenWindowsTop;
+    int top =
+        (window_count - index - 1) * kGapBetweenWindowsTop + kSystemUIHeight;
     int bottom = GetScrollableHeight() - (index * kGapBetweenWindowsBottom);
 
     WindowOverviewState* state = window->GetProperty(kWindowOverviewState);
     CHECK(state);
     if (state->split)
       return;
     state->min_y = top;
     state->max_y = bottom - window->bounds().y();
     state->progress = 0.f;
   }
@@ skipping 482 matching lines @@
     aura::Window* container,
     WindowListProvider* window_list_provider,
     SplitViewController* split_view_controller,
     WindowOverviewModeDelegate* delegate) {
   return scoped_ptr<WindowOverviewMode>(
       new WindowOverviewModeImpl(container, window_list_provider,
                                  split_view_controller, delegate));
 }
 
 }  // namespace athena