Add SetImageData api to chrome.clipboard.

extensions/browser/test_extensions_browser_client.cc

Index: extensions/browser/test_extensions_browser_client.cc
diff --git a/extensions/browser/test_extensions_browser_client.cc b/extensions/browser/test_extensions_browser_client.cc
index 32bcfce5890b186174bb033e8c6a331686293411..2efe5333bb6653bde6424780511ee762a76abbae 100644
--- a/extensions/browser/test_extensions_browser_client.cc
+++ b/extensions/browser/test_extensions_browser_client.cc
@@ -83,6 +83,7 @@ std::string TestExtensionsBrowserClient::GetUserIdHashFromContext(
     content::BrowserContext* context) {
   return "";
 }
+
 #endif
 
 bool TestExtensionsBrowserClient::IsGuestSession(
@@ -199,6 +200,12 @@ bool TestExtensionsBrowserClient::IsMinBrowserVersionSupported(
   return true;
 }
 
+void TestExtensionsBrowserClient::SaveImageDataToClipboard(
+    const std::vector<char>& image_data,
+    const std::string& type,
+    const base::Closure& success_callback,
+    const base::Closure& error_callback) {}
+
 ExtensionWebContentsObserver*
 TestExtensionsBrowserClient::GetExtensionWebContentsObserver(
     content::WebContents* web_contents) {