Add SetImageData api to chrome.clipboard.

extensions/shell/browser/shell_extensions_browser_client.cc

Index: extensions/shell/browser/shell_extensions_browser_client.cc
diff --git a/extensions/shell/browser/shell_extensions_browser_client.cc b/extensions/shell/browser/shell_extensions_browser_client.cc
index 36fa3e3e48acb6998d9fb7f22fbdbe8869fe50c9..8a738c40a34a773ffe39fb3b0bfd4db7782e61f9 100644
--- a/extensions/shell/browser/shell_extensions_browser_client.cc
+++ b/extensions/shell/browser/shell_extensions_browser_client.cc
@@ -90,6 +90,12 @@ std::string ShellExtensionsBrowserClient::GetUserIdHashFromContext(
     content::BrowserContext* context) {
   return chromeos::LoginState::Get()->primary_user_hash();
 }
+
+void ShellExtensionsBrowserClient::SaveImageDataToClipboard(
+    const std::vector<char>& image_data,
+    api::clipboard::ImageType type,
+    const base::Closure& success_callback,
+    const ErrorCallback& error_callback) {}
 #endif
 
 bool ShellExtensionsBrowserClient::IsGuestSession(