media: Remove SetCdmReadyCB and CdmReadyCB (part 1).

media/renderers/audio_renderer_impl_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 "media/renderers/audio_renderer_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 108 matching lines @@
     last_statistics_.audio_memory_usage += stats.audio_memory_usage;
   }
 
   MOCK_METHOD1(OnBufferingStateChange, void(BufferingState));
   MOCK_METHOD1(OnError, void(PipelineStatus));
   MOCK_METHOD0(OnWaitingForDecryptionKey, void(void));
 
   void InitializeRenderer(const PipelineStatusCB& pipeline_status_cb) {
     EXPECT_CALL(*this, OnWaitingForDecryptionKey()).Times(0);
     renderer_->Initialize(
-        &demuxer_stream_, pipeline_status_cb, SetCdmReadyCB(),
+        &demuxer_stream_, pipeline_status_cb, nullptr,
         base::Bind(&AudioRendererImplTest::OnStatistics,
                    base::Unretained(this)),
         base::Bind(&AudioRendererImplTest::OnBufferingStateChange,
                    base::Unretained(this)),
         base::Bind(&AudioRendererImplTest::OnEnded, base::Unretained(this)),
         base::Bind(&AudioRendererImplTest::OnError, base::Unretained(this)),
         base::Bind(&AudioRendererImplTest::OnWaitingForDecryptionKey,
                    base::Unretained(this)));
   }
 
@@ skipping 745 matching lines @@
   // Advance far enough that we shouldn't be clamped to current time (tested
   // already above).
   tick_clock_->Advance(kOneSecond);
   EXPECT_EQ(
       current_time + timestamp_helper.GetFrameDuration(frames_to_consume.value),
       CurrentMediaWallClockTime(&is_time_moving));
   EXPECT_TRUE(is_time_moving);
 }
 
 }  // namespace media