Hosting the discardable memory service in the mus process

chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h

Index: chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h
diff --git a/chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h b/chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h
index 195f7996f5e9de0be96a92300fc160967c97186e..0970ec3876934af7f4afb8c593dee1a3370a279c 100644
--- a/chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h
+++ b/chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h
@@ -20,6 +20,10 @@ class WindowManagerConnection;
 }
 
 #if defined(USE_AURA)
+namespace discardable_memory {
+class ClientDiscardableSharedMemoryManager;
+}
+
 namespace wm {
 class WMState;
 }
@@ -41,6 +45,8 @@ class ChromeBrowserMainExtraPartsViews : public ChromeBrowserMainExtraParts {
   std::unique_ptr<views::ViewsDelegate> views_delegate_;
 
 #if defined(USE_AURA)
+  std::unique_ptr<discardable_memory::ClientDiscardableSharedMemoryManager>
+      discardable_shared_memory_manager_;
   std::unique_ptr<wm::WMState> wm_state_;
   std::unique_ptr<views::WindowManagerConnection> window_manager_connection_;