Linux UI: Add IsVisibleOnAllWorkspaces()

chrome/test/base/test_browser_window.cc

Index: chrome/test/base/test_browser_window.cc
diff --git a/chrome/test/base/test_browser_window.cc b/chrome/test/base/test_browser_window.cc
index 29e4164aaf734b366a3ce007a975ab733746d655..10dd131fa1bfbd38a5c6fd33d471a9815f203750 100644
--- a/chrome/test/base/test_browser_window.cc
+++ b/chrome/test/base/test_browser_window.cc
@@ -198,6 +198,10 @@ std::string TestBrowserWindow::GetWorkspace() const {
   return std::string();
 }
 
+bool TestBrowserWindow::IsVisibleOnAllWorkspaces() const {
+  return false;
+}
+
 // TestBrowserWindowOwner -----------------------------------------------------
 
 TestBrowserWindowOwner::TestBrowserWindowOwner(TestBrowserWindow* window)