media: Remove SetCdmReadyCB and CdmReadyCB (part 1).

content/renderer/pepper/video_decoder_shim.cc

 // Copyright 2014 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 "content/renderer/pepper/video_decoder_shim.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 #include <utility>
@@ skipping 692 matching lines @@
 #elif defined(MEDIA_DISABLE_LIBVPX)
   OnInitDone(false);
   return;
 #endif
 
   // VpxVideoDecoder and FFmpegVideoDecoder support only one pending Decode()
   // request.
   DCHECK_EQ(decoder_->GetMaxDecodeRequests(), 1);
 
   decoder_->Initialize(
-      config, true /* low_delay */, media::SetCdmReadyCB(),
+      config, true /* low_delay */, nullptr,
       base::Bind(&VideoDecoderShim::DecoderImpl::OnInitDone,
                  weak_ptr_factory_.GetWeakPtr()),
       base::Bind(&VideoDecoderShim::DecoderImpl::OnOutputComplete,
                  weak_ptr_factory_.GetWeakPtr()));
 }
 
 void VideoDecoderShim::DecoderImpl::Decode(
     uint32_t decode_id,
     scoped_refptr<media::DecoderBuffer> buffer) {
   DCHECK(decoder_);
@@ skipping 396 matching lines @@
 void VideoDecoderShim::DeleteTexture(uint32_t texture_id) {
   gpu::gles2::GLES2Interface* gles2 = context_provider_->ContextGL();
   gles2->DeleteTextures(1, &texture_id);
 }
 
 void VideoDecoderShim::FlushCommandBuffer() {
   context_provider_->ContextGL()->Flush();
 }
 
 }  // namespace content