Attempt 3: Makes managed mode constrain the height of windows so they don't

ui/aura/screen_aura.cc

 // Copyright (c) 2011 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 "ui/aura/screen_aura.h"
 
 #include "base/logging.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 28 matching lines @@
 gfx::Rect ScreenAura::GetMonitorAreaNearestPointImpl(const gfx::Point& point) {
   return GetBounds();
 }
 
 gfx::NativeWindow ScreenAura::GetWindowAtCursorScreenPointImpl() {
   const gfx::Point point = GetCursorScreenPoint();
   return root_window_->GetTopWindowContainingPoint(point);
 }
 
 gfx::Rect ScreenAura::GetBounds() {
-  return gfx::Rect(root_window_->GetHostSize());
+  return gfx::Rect(root_window_->bounds().size());
 }
 
 gfx::Rect ScreenAura::GetWorkAreaBounds() {
   gfx::Rect bounds(GetBounds());
   bounds.Inset(work_area_insets_);
   return bounds;
 }
 
 gfx::Size ScreenAura::GetPrimaryMonitorSizeImpl() {
   return GetMonitorWorkAreaNearestPoint(gfx::Point()).size();
 }
 
 int ScreenAura::GetNumMonitorsImpl() {
   return 1;
 }
 
 }  // namespace aura