Support error handling for Surface readbacks

content/browser/frame_host/navigation_controller_impl_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
@@ skipping 64 matching lines @@
   }
 
   ~MockScreenshotManager() override {}
 
   void TakeScreenshotFor(content::NavigationEntryImpl* entry) {
     SkBitmap bitmap;
     bitmap.allocPixels(SkImageInfo::Make(
         1, 1, kAlpha_8_SkColorType, kPremul_SkAlphaType));
     bitmap.eraseARGB(0, 0, 0, 0);
     encoding_screenshot_in_progress_ = true;
-    OnScreenshotTaken(entry->GetUniqueID(), true, bitmap);
+    OnScreenshotTaken(entry->GetUniqueID(), bitmap, content::READBACK_SUCCESS);
     WaitUntilScreenshotIsReady();
   }
 
   int GetScreenshotCount() {
     return content::NavigationEntryScreenshotManager::GetScreenshotCount();
   }
 
   void WaitUntilScreenshotIsReady() {
     if (!encoding_screenshot_in_progress_)
       return;
@@ skipping 4294 matching lines @@
   params.post_id = -1;
   contents()->GetMainFrame()->SendNavigateWithParams(&params);
 
   // Now reload. replaceState overrides the POST, so we should not show a
   // repost warning dialog.
   controller_impl().Reload(true);
   EXPECT_EQ(0, delegate->repost_form_warning_count());
 }
 
 }  // namespace content