Support error handling for Surface readbacks

chrome/browser/ui/pdf/pdf_browsertest_base.h

Index: chrome/browser/ui/pdf/pdf_browsertest_base.h
diff --git a/chrome/browser/ui/pdf/pdf_browsertest_base.h b/chrome/browser/ui/pdf/pdf_browsertest_base.h
index e60cd46b5b92be90774701381e8e9f9f33294f95..4beecd46070dc6ed59f31792fe4c4338541dd7f3 100644
--- a/chrome/browser/ui/pdf/pdf_browsertest_base.h
+++ b/chrome/browser/ui/pdf/pdf_browsertest_base.h
@@ -10,6 +10,7 @@
 #include "base/files/file_path.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "content/public/browser/notification_observer.h"
+#include "content/public/browser/readback_types.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 
 namespace base {
@@ -42,7 +43,8 @@ class PDFBrowserTest : public InProcessBrowserTest,
   bool VerifySnapshot(const std::string& expected_filename);
 
  private:
-  void CopyFromBackingStoreCallback(bool success, const SkBitmap& bitmap);
+  void CopyFromBackingStoreCallback(const SkBitmap& bitmap,
+                                    content::ReadbackResponse response);
 
   // content::NotificationObserver
   virtual void Observe(int type,