Promotes a handful of members from WmShell to Shell

ash/common/system/chromeos/palette/tools/capture_screen_action.cc

Index: ash/common/system/chromeos/palette/tools/capture_screen_action.cc
diff --git a/ash/common/system/chromeos/palette/tools/capture_screen_action.cc b/ash/common/system/chromeos/palette/tools/capture_screen_action.cc
index c23e19c706dc91da02834a5b0f3a7af58c7387bd..29cfd1040b95330a03cf607a38a6928594486c50 100644
--- a/ash/common/system/chromeos/palette/tools/capture_screen_action.cc
+++ b/ash/common/system/chromeos/palette/tools/capture_screen_action.cc
@@ -6,8 +6,8 @@
 
 #include "ash/common/palette_delegate.h"
 #include "ash/common/system/chromeos/palette/palette_ids.h"
-#include "ash/common/wm_shell.h"
 #include "ash/resources/vector_icons/vector_icons.h"
+#include "ash/shell.h"
 #include "ash/strings/grit/ash_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ -31,7 +31,7 @@ void CaptureScreenAction::OnEnable() {
 
   delegate()->DisableTool(GetToolId());
   delegate()->HidePaletteImmediately();
-  WmShell::Get()->palette_delegate()->TakeScreenshot();
+  Shell::GetInstance()->palette_delegate()->TakeScreenshot();
 }
 
 views::View* CaptureScreenAction::CreateView() {