Cherrypick Bugfix for cross-origin check

media/blink/multibuffer_data_source_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 <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 1407 matching lines @@
   EXPECT_CALL(*this, ReadCallback(0));
   EXPECT_CALL(host_, AddBufferedByteRange(0, kDataSize * 2));
   FinishLoading();
 
   // Done loading, now we should know the length.
   EXPECT_TRUE(data_source_->GetSize(&len));
   EXPECT_EQ(kDataSize, len);
   Stop();
 }
 
+TEST_F(MultibufferDataSourceTest, DidPassCORSAccessTest) {
+  InitializeWithCORS(kHttpUrl, true, UrlData::CORS_ANONYMOUS);
+  set_preload(MultibufferDataSource::NONE);
+  WebURLResponse response1 =
+      response_generator_->GeneratePartial206(0, kDataSize - 1);
+  response1.setWasFetchedViaServiceWorker(true);
+  response1.setOriginalURLViaServiceWorker(GURL(kHttpDifferentOriginUrl));
+  WebURLResponse response2 =
+      response_generator_->GeneratePartial206(kDataSize, kDataSize * 2 - 1);
+
+  EXPECT_CALL(host_, SetTotalBytes(kFileSize));
+  EXPECT_CALL(host_, AddBufferedByteRange(0, kDataSize));
+  EXPECT_CALL(*this, ReadCallback(kDataSize));
+
+  EXPECT_FALSE(data_source_->DidPassCORSAccessCheck());
+  Respond(response1);
+  ReceiveData(kDataSize);
+  ReadAt(0);
+  EXPECT_TRUE(loading());
+  EXPECT_TRUE(data_source_->DidPassCORSAccessCheck());
+
+  FinishLoading();
+
+  // Verify that if reader_ is null, DidPassCORSAccessCheck still returns true.
+  data_source_->Stop();
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_TRUE(data_source_->DidPassCORSAccessCheck());
+}
+
 }  // namespace media