Add Get/SetDisplayLayout to chrome.system.display extension API

extensions/browser/api/system_display/system_display_api.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_BROWSER_API_SYSTEM_DISPLAY_SYSTEM_DISPLAY_API_H_
 #define EXTENSIONS_BROWSER_API_SYSTEM_DISPLAY_SYSTEM_DISPLAY_API_H_
 
 #include <string>
 
 #include "extensions/browser/extension_function.h"
@@ skipping 12 matching lines @@
 
 class SystemDisplayGetInfoFunction : public SystemDisplayFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("system.display.getInfo", SYSTEM_DISPLAY_GETINFO);
 
  protected:
   ~SystemDisplayGetInfoFunction() override {}
   bool RunSync() override;
 };
 
+class SystemDisplayGetDisplayLayoutFunction : public SystemDisplayFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("system.display.getDisplayLayout",
+                             SYSTEM_DISPLAY_GETDISPLAYLAYOUT);
+
+ protected:
+  ~SystemDisplayGetDisplayLayoutFunction() override {}
+  bool RunSync() override;
+};
+
 class SystemDisplaySetDisplayPropertiesFunction : public SystemDisplayFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("system.display.setDisplayProperties",
                              SYSTEM_DISPLAY_SETDISPLAYPROPERTIES);
 
  protected:
   ~SystemDisplaySetDisplayPropertiesFunction() override {}
   bool RunSync() override;
 };
 
+class SystemDisplaySetDisplayLayoutFunction : public SystemDisplayFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("system.display.setDisplayLayout",
+                             SYSTEM_DISPLAY_SETDISPLAYLAYOUT);
+
+ protected:
+  ~SystemDisplaySetDisplayLayoutFunction() override {}
+  bool RunSync() override;
+};
+
 class SystemDisplayEnableUnifiedDesktopFunction : public SystemDisplayFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("system.display.enableUnifiedDesktop",
                              SYSTEM_DISPLAY_ENABLEUNIFIEDDESKTOP);
 
  protected:
   ~SystemDisplayEnableUnifiedDesktopFunction() override {}
   bool RunSync() override;
 };
 
@@ skipping 37 matching lines @@
                              SYSTEM_DISPLAY_OVERSCANCALIBRATIONCOMPLETE);
 
  protected:
   ~SystemDisplayOverscanCalibrationCompleteFunction() override {}
   bool RunSync() override;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_SYSTEM_DISPLAY_SYSTEM_DISPLAY_API_H_