media: Update logging to indicate that new key has been provided

media/filters/decrypting_video_decoder.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/decrypting_video_decoder.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 237 matching lines @@
     DVLOG(1) << "DeliverFrame() - no key for key ID " << missing_key_id;
     MEDIA_LOG(INFO, media_log_) << GetDisplayName() << ": no key for key ID "
                                 << missing_key_id;
 
     // Set |pending_buffer_to_decode_| back as we need to try decoding the
     // pending buffer again when new key is added to the decryptor.
     pending_buffer_to_decode_ = scoped_pending_buffer_to_decode;
 
     if (need_to_try_again_if_nokey_is_returned) {
       // The |state_| is still kPendingDecode.
+      MEDIA_LOG(INFO, media_log_) << GetDisplayName()
+                                  << ": key was added, resuming decode";
       DecodePendingBuffer();
       return;
     }
 
     state_ = kWaitingForKey;
     waiting_for_decryption_key_cb_.Run();
     return;
   }
 
   if (status == Decryptor::kNeedMoreData) {
@@ skipping 24 matching lines @@
 void DecryptingVideoDecoder::OnKeyAdded() {
   DVLOG(2) << "OnKeyAdded()";
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   if (state_ == kPendingDecode) {
     key_added_while_decode_pending_ = true;
     return;
   }
 
   if (state_ == kWaitingForKey) {
+    MEDIA_LOG(INFO, media_log_) << GetDisplayName()
+                                << ": key added, resuming decode";
     state_ = kPendingDecode;
     DecodePendingBuffer();
   }
 }
 
 void DecryptingVideoDecoder::DoReset() {
   DCHECK(init_cb_.is_null());
   DCHECK(decode_cb_.is_null());
   state_ = kIdle;
   base::ResetAndReturn(&reset_cb_).Run();
 }
 
 }  // namespace media