Add idl for managing focus in app_shell

extensions/shell/browser/api/shell_window/shell_window_api.h

Index: extensions/shell/browser/api/shell_window/shell_window_api.h
diff --git a/extensions/shell/browser/api/shell_window/shell_window_api.h b/extensions/shell/browser/api/shell_window/shell_window_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..368be082c7d5b2209098d379fa5839500e387df3
--- /dev/null
+++ b/extensions/shell/browser/api/shell_window/shell_window_api.h
@@ -0,0 +1,66 @@
+// Copyright 2014 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_SHELL_BROWSER_API_SHELL_WINDOW_SHELL_WINDOW_API_H_
+#define EXTENSIONS_SHELL_BROWSER_API_SHELL_WINDOW_SHELL_WINDOW_API_H_
+
+#include "base/macros.h"
+#include "extensions/browser/extension_function.h"
+
+namespace extensions {
+
+// TODO(zork): Implement this function.
+class ShellWindowShowAppFunction : public UIThreadExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("shell.window.showApp", UNKNOWN);
+
+  ShellWindowShowAppFunction();
+
+ protected:
+  ~ShellWindowShowAppFunction() override;
+
+  // ExtensionFunction:
+  ResponseAction Run() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellWindowShowAppFunction);
+};
+
+// TODO(zork): Implement this function.
+class ShellWindowRequestShowFunction : public UIThreadExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("shell.window.requestShow", UNKNOWN);
+
+  ShellWindowRequestShowFunction();
+
+ protected:
+  ~ShellWindowRequestShowFunction() override;
+
+  // ExtensionFunction:
+  ResponseAction Run() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellWindowRequestShowFunction);
+};
+
+// TODO(zork): Implement this function.
+class ShellWindowRequestHideFunction : public UIThreadExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("shell.window.requestHide", UNKNOWN);
+
+  ShellWindowRequestHideFunction();
+
+ protected:
+  ~ShellWindowRequestHideFunction() override;
+
+  // ExtensionFunction:
+  ResponseAction Run() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellWindowRequestHideFunction);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_SHELL_BROWSER_API_SHELL_WINDOW_SHELL_WINDOW_API_H_