Move AcceleratorController from WmShell to Shell

chrome/browser/ui/ash/palette_delegate_chromeos.cc

Index: chrome/browser/ui/ash/palette_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/palette_delegate_chromeos.cc b/chrome/browser/ui/ash/palette_delegate_chromeos.cc
index 99443ac7fd154f64b01a6a788c493f0b5984e84f..d69e95964a165618fd846d76de6231c3da29d190 100644
--- a/chrome/browser/ui/ash/palette_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/palette_delegate_chromeos.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/ui/ash/palette_delegate_chromeos.h"
 
 #include "ash/accelerators/accelerator_controller_delegate_aura.h"
+#include "ash/aura/wm_shell_aura.h"
 #include "ash/common/system/chromeos/palette/palette_utils.h"
 #include "ash/screenshot_delegate.h"
 #include "ash/shell.h"
@@ -132,7 +133,7 @@ bool PaletteDelegateChromeOS::ShouldShowPalette() {
 }
 
 void PaletteDelegateChromeOS::TakeScreenshot() {
-  auto* screenshot_delegate = ash::Shell::GetInstance()
+  auto* screenshot_delegate = ash::WmShellAura::Get()
                                   ->accelerator_controller_delegate()
                                   ->screenshot_delegate();
   screenshot_delegate->HandleTakeScreenshotForAllRootWindows();
@@ -141,7 +142,7 @@ void PaletteDelegateChromeOS::TakeScreenshot() {
 void PaletteDelegateChromeOS::TakePartialScreenshot(const base::Closure& done) {
   auto* screenshot_controller =
       ash::Shell::GetInstance()->screenshot_controller();
-  auto* screenshot_delegate = ash::Shell::GetInstance()
+  auto* screenshot_delegate = ash::WmShellAura::Get()
                                   ->accelerator_controller_delegate()
                                   ->screenshot_delegate();