Add SubsampleEntry constructor.

media/base/decoder_buffer_unittest.cc

 // Copyright (c) 2012 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/strings/string_util.h"
 #include "media/base/decoder_buffer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 
@@ skipping 81 matching lines @@
   uint8* data = buffer->writable_data();
   ASSERT_TRUE(data);
   ASSERT_EQ(kDataSize, buffer->data_size());
   memcpy(data, kData, kDataSize);
   const uint8* read_only_data = buffer->data();
   ASSERT_EQ(data, read_only_data);
   ASSERT_EQ(0, memcmp(read_only_data, kData, kDataSize));
   EXPECT_FALSE(buffer->end_of_stream());
 }
 
-TEST(DecoderBufferTest, GetDecryptConfig) {
+TEST(DecoderBufferTest, DecryptConfig) {
   scoped_refptr<DecoderBuffer> buffer(new DecoderBuffer(0));
   EXPECT_FALSE(buffer->decrypt_config());
+
+  const char kKeyId[] = "key id";
+  const char kIv[] = "0123456789abcdef";
+  std::vector<SubsampleEntry> subsamples;
+  subsamples.push_back(SubsampleEntry(10, 20));
+  subsamples.push_back(SubsampleEntry(30, 40));

[ddorwin, 2014/11/25 20:47:48]

nit: This example could imply some relation between the two when in reality, 40
would more likely be 20. It might be clearer to have something like:
10, 5
15, 5

[xhwang, 2014/11/25 22:13:44]

Done.

+
+  DecryptConfig decrypt_config(kKeyId, kIv, subsamples);
+
+  buffer->set_decrypt_config(
+      make_scoped_ptr(new DecryptConfig(kKeyId, kIv, subsamples)));
+
+  EXPECT_TRUE(buffer->decrypt_config());
+  EXPECT_TRUE(buffer->decrypt_config()->Matches(decrypt_config));
 }
 
 TEST(DecoderBufferTest, IsKeyFrame) {
   scoped_refptr<DecoderBuffer> buffer(new DecoderBuffer(0));
   EXPECT_FALSE(buffer->is_key_frame());
 
   buffer->set_is_key_frame(false);
   EXPECT_FALSE(buffer->is_key_frame());
 
   buffer->set_is_key_frame(true);
   EXPECT_TRUE(buffer->is_key_frame());
 }
 
 }  // namespace media