mash: Move directly linked NewWindowDelegate to mojom::NewWindowClient.

chrome/browser/ui/browser_commands.cc

Index: chrome/browser/ui/browser_commands.cc
diff --git a/chrome/browser/ui/browser_commands.cc b/chrome/browser/ui/browser_commands.cc
index 4b328bcd344b0519969b1833423c8ac61d192a61..97523498d245936afc94ff70fabf271ded4d7a22 100644
--- a/chrome/browser/ui/browser_commands.cc
+++ b/chrome/browser/ui/browser_commands.cc
@@ -115,6 +115,13 @@
 #include "chrome/browser/media/router/media_router_dialog_controller.h"  // nogncheck
 #endif
 
+#if defined(USE_ASH)
+#include "chrome/browser/ui/ash/ash_util.h"
+#include "content/public/common/service_manager_connection.h"
+#include "mash/public/interfaces/launchable.mojom.h"
+#include "services/service_manager/public/cpp/connector.h"
+#endif
+
 namespace {
 const char kOsOverrideForTabletSite[] = "Linux; Android 4.0.3";
 }
@@ -1060,7 +1067,21 @@ bool CanOpenTaskManager() {
 void OpenTaskManager(Browser* browser) {
 #if defined(ENABLE_TASK_MANAGER)
   content::RecordAction(UserMetricsAction("TaskManager"));
-  chrome::ShowTaskManager(browser);
+
+#if defined(USE_ASH)
+  if (chrome::IsRunningInMash()) {
+    service_manager::Connector* connector =
+        content::ServiceManagerConnection::GetForProcess()->GetConnector();
+    mash::mojom::LaunchablePtr launchable;
+    connector->ConnectToInterface("service:task_viewer", &launchable);
+    launchable->Launch(mash::mojom::kWindow,
+                       mash::mojom::LaunchMode::DEFAULT);
+  }
+  else
+#endif
+  {
+    chrome::ShowTaskManager(browser);
+  }
 #else
   NOTREACHED();
 #endif