Initial skeleton for System Indicator API

chrome/browser/extensions/api/system_indicator/system_indicator_api.h

+// Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_API_H_
+#define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_API_H_
+
+#include "chrome/browser/extensions/extension_function.h"
+
+namespace extensions {
+
+class SystemIndicatorSetURLFunction : public SyncExtensionFunction {

[Pete Williamson, 2012/11/13 18:01:41]

Why Sync instead of Async?  (It's not necessarily wrong, I just want to
understand the intent better)

[dewittj, 2012/11/14 00:25:07]

I expect the actual loading of the image from the URL will be done in a custom
JS binding, so the backend work to actually set the data will be synchronous.

+ public:
+  SystemIndicatorSetURLFunction();
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.systemIndicator.setURL")
+
+ protected:
+  virtual ~SystemIndicatorSetURLFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+};
+
+class SystemIndicatorSetImageDataFunction : public SyncExtensionFunction {
+ public:
+  SystemIndicatorSetImageDataFunction();
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.systemIndicator.setImageData")
+
+ protected:
+  virtual ~SystemIndicatorSetImageDataFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+};
+
+class SystemIndicatorShowFunction : public SyncExtensionFunction {
+ public:
+  SystemIndicatorShowFunction();
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.systemIndicator.show")
+
+ protected:
+  virtual ~SystemIndicatorShowFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+};
+
+class SystemIndicatorHideFunction : public SyncExtensionFunction {
+ public:
+  SystemIndicatorHideFunction();
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.systemIndicator.hide");
+
+ protected:
+  virtual ~SystemIndicatorHideFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_API_H_