ash/chromeos: Add shift-alt-p shortcut to open palette.

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 3192f8b4bfe9ba1cef05121b3f5c968977d1497f..590d86d68ddcf9855c3189f781062e7fcf5a3cbe 100644
--- a/chrome/browser/ui/ash/palette_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/palette_delegate_chromeos.cc
@@ -134,6 +134,13 @@ bool PaletteDelegateChromeOS::ShouldAutoOpenPalette() {
   return profile_->GetPrefs()->GetBoolean(prefs::kLaunchPaletteOnEjectEvent);
 }
 
+bool PaletteDelegateChromeOS::ShouldShowPalette() {
+  if (!profile_)
+    return false;
+
+  return profile_->GetPrefs()->GetBoolean(prefs::kEnableStylusTools);
+}
+
 void PaletteDelegateChromeOS::TakeScreenshot() {
   auto* screenshot_delegate = ash::Shell::GetInstance()
                                   ->accelerator_controller_delegate()