1 files changed, 9 insertions, 0 deletions
diff --git a/ash/test/ash_test_base.h b/ash/test/ash_test_base.h
index 2ca9246..559b370 100644
--- a/ash/test/ash_test_base.h
+++ b/ash/test/ash_test_base.h
@@ -6,6 +6,8 @@
 #define ASH_TEST_ASH_TEST_BASE_H_
 #pragma once
 
+#include <string>
+
 #include "ash/shell.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
@@ -38,6 +40,13 @@ class AshTestBase : public testing::Test {
   // and |scale|.
   void ChangeMonitorConfig(float scale, const gfx::Rect& bounds);
 
+  // Update the display configuration as given in |display_specs|.  The
+  // format of |display_spec| is a list of comma separated spec for
+  // each displays. Please refer to the comment in
+  // | aura::MonitorManager::CreateMonitorFromSpec| for the format of
+  // the display spec.
+  void UpdateMonitor(const std::string& display_specs);
+
  protected:
   void RunAllPendingInMessageLoop();