Revert of Pass initDataType instead of contentType on OnNeedKey().

media/filters/pipeline_integration_test.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 "media/filters/pipeline_integration_test_base.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
@@ skipping 11 matching lines @@
 
 using testing::_;
 using testing::AnyNumber;
 using testing::AtLeast;
 using testing::AtMost;
 using testing::SaveArg;
 
 namespace media {
 
 const char kSourceId[] = "SourceId";
-const char kCencInitDataType[] = "cenc";
 const uint8 kInitData[] = { 0x69, 0x6e, 0x69, 0x74 };
 
 const char kWebM[] = "video/webm; codecs=\"vp8,vorbis\"";
 const char kWebMVP9[] = "video/webm; codecs=\"vp9\"";
 const char kAudioOnlyWebM[] = "video/webm; codecs=\"vorbis\"";
 const char kOpusAudioOnlyWebM[] = "video/webm; codecs=\"opus\"";
 const char kVideoOnlyWebM[] = "video/webm; codecs=\"vp8\"";
+const char kMP4VideoType[] = "video/mp4";
+const char kMP4AudioType[] = "audio/mp4";
 #if defined(USE_PROPRIETARY_CODECS)
 const char kADTS[] = "audio/aac";
 const char kMP4[] = "video/mp4; codecs=\"avc1.4D4041,mp4a.40.2\"";
 const char kMP4Video[] = "video/mp4; codecs=\"avc1.4D4041\"";
 const char kMP4VideoAVC3[] = "video/mp4; codecs=\"avc3.64001f\"";
 const char kMP4Audio[] = "audio/mp4; codecs=\"mp4a.40.2\"";
 const char kMP3[] = "audio/mpeg";
 #endif  // defined(USE_PROPRIETARY_CODECS)
 
 // Key used to encrypt test files.
@@ skipping 209 matching lines @@
                                MediaKeys::TEMPORARY_SESSION,
                                CreateSessionPromise(RESOLVED));
       EXPECT_FALSE(current_session_id_.empty());
     }
 
     // Clear Key really needs the key ID in |init_data|. For WebM, they are the
     // same, but this is not the case for ISO CENC. Therefore, provide the
     // correct key ID.
     const uint8* key_id = init_data.empty() ? NULL : &init_data[0];
     size_t key_id_length = init_data.size();
-    if (type == kCencInitDataType) {
+    if (type == kMP4AudioType || type == kMP4VideoType) {
       key_id = kKeyId;
       key_id_length = arraysize(kKeyId);
     }
 
     // Convert key into a JSON structure and then add it.
     std::string jwk = GenerateJWKSet(
         kSecretKey, arraysize(kSecretKey), key_id, key_id_length);
     decryptor->UpdateSession(current_session_id_,
                              reinterpret_cast<const uint8*>(jwk.data()),
                              jwk.size(),
@@ skipping 1327 matching lines @@
 TEST_F(PipelineIntegrationTest, BasicPlaybackPositiveStartTime) {
   ASSERT_TRUE(
       Start(GetTestDataFilePath("nonzero-start-time.webm"), PIPELINE_OK));
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
   ASSERT_EQ(base::TimeDelta::FromMicroseconds(396000),
             demuxer_->GetStartTime());
 }
 
 }  // namespace media