Add SetImageData api to chrome.clipboard.

extensions/browser/api/clipboard/clipboard_api.h

Index: extensions/browser/api/clipboard/clipboard_api.h
diff --git a/extensions/browser/api/clipboard/clipboard_api.h b/extensions/browser/api/clipboard/clipboard_api.h
index 57d2a4c8cbb05209ab1498464d2bc468ad422d54..a7e666e920847d2e38258340d5f4481b6cfb285f 100644
--- a/extensions/browser/api/clipboard/clipboard_api.h
+++ b/extensions/browser/api/clipboard/clipboard_api.h
@@ -32,6 +32,20 @@ class ClipboardAPI : public BrowserContextKeyedAPI,
   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_