Modify SetImageData to add additional items along with image data to save on clipboard.

extensions/browser/api/extensions_api_client.h

Index: extensions/browser/api/extensions_api_client.h
diff --git a/extensions/browser/api/extensions_api_client.h b/extensions/browser/api/extensions_api_client.h
index e61cc0cee7b6e6b1a0836952fd796fee68137945..71f69564423cee964998233e2bd1ca218d5eae86 100644
--- a/extensions/browser/api/extensions_api_client.h
+++ b/extensions/browser/api/extensions_api_client.h
@@ -9,6 +9,7 @@
 #include <memory>
 
 #include "base/memory/ref_counted.h"
+#include "extensions/browser/api/clipboard/clipboard_api.h"
 #include "extensions/browser/api/declarative_content/content_rules_registry.h"
 #include "extensions/browser/api/storage/settings_namespace.h"
 #include "extensions/common/api/clipboard.h"
@@ -145,6 +146,7 @@ class ExtensionsAPIClient {
   virtual void SaveImageDataToClipboard(
       const std::vector<char>& image_data,
       api::clipboard::ImageType type,
+      std::unique_ptr<AdditionalDataItemList> additional_items,
       const base::Closure& success_callback,
       const base::Callback<void(const std::string&)>& error_callback);
 #endif