Fix size and positioning of popup windows to work in DIP for Win-Aura in high-DPI mode.

ui/views/widget/desktop_aura/desktop_native_widget_aura.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 "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
 
 #include "base/bind.h"
 #include "ui/aura/client/activation_client.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/stacking_client.h"
 #include "ui/aura/focus_manager.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/root_window_host.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_observer.h"
 #include "ui/aura/window_property.h"
 #include "ui/base/hit_test.h"
 #include "ui/compositor/layer.h"
 #include "ui/gfx/canvas.h"
+#include "ui/gfx/display.h"
+#include "ui/gfx/point_conversions.h"
+#include "ui/gfx/screen.h"
+#include "ui/gfx/size_conversions.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/views/corewm/compound_event_filter.h"
 #include "ui/views/corewm/corewm_switches.h"
 #include "ui/views/corewm/input_method_event_filter.h"
 #include "ui/views/corewm/shadow_controller.h"
 #include "ui/views/corewm/shadow_types.h"
 #include "ui/views/corewm/tooltip_controller.h"
 #include "ui/views/corewm/visibility_controller.h"
 #include "ui/views/corewm/window_modality_controller.h"
 #include "ui/views/drag_utils.h"
@@ skipping 364 matching lines @@
 
 gfx::Rect DesktopNativeWidgetAura::GetClientAreaBoundsInScreen() const {
   return desktop_root_window_host_->GetClientAreaBoundsInScreen();
 }
 
 gfx::Rect DesktopNativeWidgetAura::GetRestoredBounds() const {
   return desktop_root_window_host_->GetRestoredBounds();
 }
 
 void DesktopNativeWidgetAura::SetBounds(const gfx::Rect& bounds) {
-  desktop_root_window_host_->AsRootWindowHost()->SetBounds(bounds);
+  float scale = 1;
+  aura::RootWindow* root = root_window_.get();
+  if (root) {
+    scale = gfx::Screen::GetScreenFor(root)->
+        GetDisplayNearestWindow(root).device_scale_factor();
+  }
+  gfx::Rect bounds_in_pixels(
+      gfx::ToCeiledPoint(gfx::ScalePoint(bounds.origin(), scale)),
+      gfx::ToFlooredSize(gfx::ScaleSize(bounds.size(), scale)));
+  desktop_root_window_host_->AsRootWindowHost()->SetBounds(bounds_in_pixels);
 }
 
 void DesktopNativeWidgetAura::SetSize(const gfx::Size& size) {
   desktop_root_window_host_->SetSize(size);
 }
 
 void DesktopNativeWidgetAura::StackAbove(gfx::NativeView native_view) {
 }
 
 void DesktopNativeWidgetAura::StackAtTop() {
@@ skipping 403 matching lines @@
   drop_helper_->OnDragExit();
 }
 
 int DesktopNativeWidgetAura::OnPerformDrop(const ui::DropTargetEvent& event) {
   DCHECK(drop_helper_.get() != NULL);
   return drop_helper_->OnDrop(event.data(), event.location(),
       last_drop_operation_);
 }
 
 }  // namespace views