Refactor WindowFinder definition

chrome/browser/ui/views/tabs/window_finder_mus.cc

Index: chrome/browser/ui/views/tabs/window_finder_mus.cc
diff --git a/chrome/browser/ui/views/tabs/window_finder_mus.cc b/chrome/browser/ui/views/tabs/window_finder_mus.cc
index c42aec3a897db645a9955c554024a3436957e4bb..4b1fb666ab9ff7d9674892f1b337f0a924d4435a 100644
--- a/chrome/browser/ui/views/tabs/window_finder_mus.cc
+++ b/chrome/browser/ui/views/tabs/window_finder_mus.cc
@@ -4,17 +4,22 @@
 
 #include "chrome/browser/ui/views/tabs/window_finder_mus.h"
 
+#include "content/public/common/service_manager_connection.h"  // nogncheck
+#include "services/service_manager/runner/common/client_util.h"  // nogncheck
 #include "ui/aura/window.h"
 #include "ui/views/mus/native_widget_mus.h"
 #include "ui/views/mus/window_manager_connection.h"
 
-WindowFinderMus::WindowFinderMus() {}
+bool GetLocalProcessWindowAtPointMus(
+    const gfx::Point& screen_point,
+    const std::set<gfx::NativeWindow>& ignore,
+    gfx::NativeWindow* out) {
 
-WindowFinderMus::~WindowFinderMus() {}
+  content::ServiceManagerConnection* service_manager_connection =
+      content::ServiceManagerConnection::GetForProcess();
+  if (!service_manager_connection || !service_manager::ServiceManagerIsRemote())
+    return false;
 
-gfx::NativeWindow WindowFinderMus::GetLocalProcessWindowAtPoint(
-    const gfx::Point& screen_point,
-    const std::set<gfx::NativeWindow>& ignore) {
   std::set<ui::Window*> mus_windows =
       views::WindowManagerConnection::Get()->GetRoots();
   // TODO(erg): Needs to deal with stacking order here.
@@ -30,9 +35,10 @@ gfx::NativeWindow WindowFinderMus::GetLocalProcessWindowAtPoint(
       if (base::ContainsKey(ignore, content_window))
         continue;
 
-      return content_window;
+      *out = content_window;
+      return true;
     }
   }
 
-  return nullptr;
+  return false;
 }