Hook up Chrome's wallpaper picker for mash.

chrome/browser/chromeos/chrome_interface_factory.cc

Index: chrome/browser/chromeos/chrome_interface_factory.cc
diff --git a/chrome/browser/chromeos/chrome_interface_factory.cc b/chrome/browser/chromeos/chrome_interface_factory.cc
index f236cfb651b3eec83381fb6713dfb827def71ac8..c2576f192f74ce79f6b09ddb3b4c44c5318a983f 100644
--- a/chrome/browser/chromeos/chrome_interface_factory.cc
+++ b/chrome/browser/chromeos/chrome_interface_factory.cc
@@ -7,6 +7,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/ash/app_list/app_list_presenter_service.h"
+#include "chrome/browser/ui/ash/chrome_wallpaper_helper.h"
 #include "chrome/browser/ui/ash/keyboard_ui_service.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ -64,6 +65,7 @@ ChromeInterfaceFactory::~ChromeInterfaceFactory() {}
 bool ChromeInterfaceFactory::AcceptConnection(shell::Connection* connection) {
   connection->AddInterface<keyboard::mojom::Keyboard>(this);
   connection->AddInterface<mash::mojom::Launchable>(this);
+  connection->AddInterface<mash::mojom::WallpaperHelper>(this);
   connection->AddInterface<app_list::mojom::AppListPresenter>(this);
   return true;
 }
@@ -85,6 +87,14 @@ void ChromeInterfaceFactory::Create(shell::Connection* connection,
 
 void ChromeInterfaceFactory::Create(
     shell::Connection* connection,
+    mash::mojom::WallpaperHelperRequest request) {
+  if (!wallpaper_helper_)
+    wallpaper_helper_.reset(new ChromeWallpaperHelper);
+  wallpaper_helper_->ProcessRequest(std::move(request));
+}
+
+void ChromeInterfaceFactory::Create(
+    shell::Connection* connection,
     mojo::InterfaceRequest<app_list::mojom::AppListPresenter> request) {
   if (!app_list_presenter_service_)
     app_list_presenter_service_.reset(new AppListPresenterService);