Add SetImageData api to chrome.clipboard.

extensions/browser/api/clipboard/clipboard_api.h

 // Copyright (c) 2016 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_CLIPBOARD_CLIPBOARD_API_H_
 #define EXTENSIONS_BROWSER_API_CLIPBOARD_CLIPBOARD_API_H_
 
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/extension_function.h"
 #include "ui/base/clipboard/clipboard_observer.h"
@@ skipping 14 matching lines @@
 
  private:
   friend class BrowserContextKeyedAPIFactory<ClipboardAPI>;
 
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() { return "ClipboardAPI"; }
 
   content::BrowserContext* const browser_context_;
 };
 
+class ClipboardSetImageDataFunction : public UIThreadExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("clipboard.setImageData", CLIPBOARD_SETIMAGEDATA);
+
+ protected:
+  ~ClipboardSetImageDataFunction() override;
+  ResponseAction Run() override;
+
+  void SaveImageData(const std::vector<char>& image_data,
+                     const std::string& type);
+  void OnSaveImageDataSuccess();
+  void OnSaveImageDataError();
+};
+
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_CLIPBOARD_CLIPBOARD_API_H_