Use the source display's pixel size as a mirror window's size.

ash/display/display_controller.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/display/display_controller.h"
 
 #include <algorithm>
 #include <cmath>
 #include <map>
 
-#include "ash/ash_root_window_transformer.h"
 #include "ash/ash_switches.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/display_pref_util.h"
+#include "ash/display/root_window_transformers.h"
 #include "ash/host/root_window_host_factory.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/wm/coordinate_conversion.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/window_util.h"
 #include "base/command_line.h"
 #include "base/json/json_value_converter.h"
 #include "base/stringprintf.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
 #include "base/values.h"
 #include "third_party/skia/include/utils/SkMatrix44.h"
 #include "ui/aura/client/activation_client.h"
 #include "ui/aura/client/capture_client.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/client/focus_client.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
+#include "ui/aura/root_window_transformer.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_property.h"
 #include "ui/aura/window_tracker.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/screen.h"
 
 #if defined(OS_CHROMEOS)
 #include "base/chromeos/chromeos_version.h"
@@ skipping 115 matching lines @@
   int internal = display.IsInternal() ? 1 : 0;
   gfx::AcceleratedWidget xwindow = root->GetAcceleratedWidget();
   ui::SetIntProperty(xwindow, kInternalProp, kCARDINAL, internal);
   ui::SetIntProperty(xwindow, kRotationProp, kCARDINAL, xrandr_rotation);
   ui::SetIntProperty(xwindow,
                      kScaleFactorProp,
                      kCARDINAL,
                      100 * display.device_scale_factor());
 #endif
   scoped_ptr<aura::RootWindowTransformer> transformer(
-      new AshRootWindowTransformer(root, display));
+      internal::CreateRootWindowTransformerForDisplay(root, display));
   root->SetRootWindowTransformer(transformer.Pass());
 }
 
 }  // namespace
 
 namespace internal {
 
 // A utility class to store/restore focused/active window
 // when the display configuration has changed.
 class FocusActivationStore {
@@ skipping 411 matching lines @@
     // primary.
     return pair.first == primary.id() ? layout : layout.Invert();
   }
   // On release build, just fallback to default instead of blowing up.
   return default_display_layout_;
 }
 
 DisplayIdPair DisplayController::GetCurrentDisplayIdPair() const {
   internal::DisplayManager* display_manager = GetDisplayManager();
   const gfx::Display& primary = GetPrimaryDisplay();
-  if (display_manager->IsMirrored())
-    return std::make_pair(primary.id(), display_manager->mirrored_display_id());
+  if (display_manager->IsMirrored()) {
+    return std::make_pair(primary.id(),
+                          display_manager->mirrored_display().id());
+  }
 
   const gfx::Display& secondary = ScreenAsh::GetSecondaryDisplay();
   if (primary.IsInternal() ||
       GetDisplayManager()->first_display_id() == primary.id()) {
     return std::make_pair(primary.id(), secondary.id());
   } else {
     // Display has been Swapped.
     return std::make_pair(secondary.id(), primary.id());
   }
 }
@@ skipping 412 matching lines @@
 }
 
 void DisplayController::OnFadeOutForSwapDisplayFinished() {
 #if defined(OS_CHROMEOS) && defined(USE_X11)
   SetPrimaryDisplay(ScreenAsh::GetSecondaryDisplay());
   Shell::GetInstance()->output_configurator_animation()->StartFadeInAnimation();
 #endif
 }
 
 }  // namespace ash