Layout login/lock screen, shelf and app list inside the first display in Unified Desktop mode

ash/shelf/shelf_layout_manager.cc

 // Copyright (c) 2012 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 "ash/shelf/shelf_layout_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <cstring>
 #include <string>
@@ skipping 720 matching lines @@
   bounds->Inset(SelectValueForShelfAlignment(
       gfx::Insets(0, 0, inset, 0),
       gfx::Insets(0, inset, 0, 0),
       gfx::Insets(0, 0, 0, inset),
       gfx::Insets(inset, 0, 0, 0)));
 }
 
 void ShelfLayoutManager::CalculateTargetBounds(
     const State& state,
     TargetBounds* target_bounds) {
-  const gfx::Rect available_bounds(root_window_->bounds());
+  gfx::Rect available_bounds =
+      ScreenUtil::GetShelfDisplayBoundsInScreen(root_window_);
+  available_bounds =
+      ScreenUtil::ConvertRectFromScreen(root_window_, available_bounds);
+
   gfx::Rect status_size(
       shelf_->status_area_widget()->GetWindowBoundsInScreen().size());
   int shelf_width = 0, shelf_height = 0;
   GetShelfSize(&shelf_width, &shelf_height);
   if (IsHorizontalAlignment())
     shelf_width = available_bounds.width();
   else
     shelf_height = available_bounds.height();
 
   if (state.visibility_state == SHELF_AUTO_HIDE &&
@@ skipping 425 matching lines @@
     return false;
   }
   if (session_state_delegate->IsUserSessionBlocked() ||
       state_.is_adding_user_screen) {
     return true;
   }
   return false;
 }
 
 }  // namespace ash