Move DIP translation from ui/aura to ui/compositor

ash/wm/shelf_layout_manager.cc

Index: ash/wm/shelf_layout_manager.cc
diff --git a/ash/wm/shelf_layout_manager.cc b/ash/wm/shelf_layout_manager.cc
index af5aa75c7b964a2c4d33bbcdde3f3ba449162371..bd7f82de5284e59ab60aa4c08a5ffeff64ee5b3e 100644
--- a/ash/wm/shelf_layout_manager.cc
+++ b/ash/wm/shelf_layout_manager.cc
@@ -14,7 +14,6 @@
 #include "base/auto_reset.h"
 #include "base/i18n/rtl.h"
 #include "ui/aura/client/activation_client.h"
-#include "ui/aura/dip_util.h"
 #include "ui/aura/event.h"
 #include "ui/aura/event_filter.h"
 #include "ui/aura/root_window.h"
@@ -37,11 +36,6 @@ ui::Layer* GetLayer(views::Widget* widget) {
   return widget->GetNativeView()->layer();
 }
 
-void SetLayerBounds(views::Widget* widget, const gfx::Rect& bounds) {
-  aura::Window* window = widget->GetNativeView();
-  window->layer()->SetBounds(aura::ConvertRectToPixel(window, bounds));
-}
-
 }  // namespace
 
 // static
@@ -195,6 +189,7 @@ void ShelfLayoutManager::LayoutShelf() {
   CalculateTargetBounds(state_, &target_bounds);
   if (launcher_widget()) {
     GetLayer(launcher_widget())->SetOpacity(target_bounds.opacity);
+
     launcher_widget()->SetBounds(target_bounds.launcher_bounds);
     launcher_->SetStatusWidth(
         target_bounds.status_bounds.width());
@@ -334,7 +329,7 @@ void ShelfLayoutManager::SetState(VisibilityState visibility_state) {
     launcher_animation_setter.SetTransitionDuration(
         base::TimeDelta::FromMilliseconds(130));
     launcher_animation_setter.SetTweenType(ui::Tween::EASE_OUT);
-    SetLayerBounds(launcher_widget(), target_bounds.launcher_bounds);
+    GetLayer(launcher_widget())->SetBounds(target_bounds.launcher_bounds);
     GetLayer(launcher_widget())->SetOpacity(target_bounds.opacity);
   }
   ui::ScopedLayerAnimationSettings status_animation_setter(
@@ -342,7 +337,7 @@ void ShelfLayoutManager::SetState(VisibilityState visibility_state) {
   status_animation_setter.SetTransitionDuration(
       base::TimeDelta::FromMilliseconds(130));
   status_animation_setter.SetTweenType(ui::Tween::EASE_OUT);
-  SetLayerBounds(status_, target_bounds.status_bounds);
+  GetLayer(status_)->SetBounds(target_bounds.status_bounds);
   GetLayer(status_)->SetOpacity(target_bounds.opacity);
   Shell::GetInstance()->SetMonitorWorkAreaInsets(
       Shell::GetRootWindow(),