Handle plugin instance crash in ContentDecryptorDelegate.

content/renderer/media/crypto/proxy_decryptor.cc

 // Copyright 2013 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/media/crypto/proxy_decryptor.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
@@ skipping 101 matching lines @@
   return true;
 }
 
 bool ProxyDecryptor::GenerateKeyRequest(const std::string& type,
                                         const uint8* init_data,
                                         int init_data_length) {
   // Use a unique reference id for this request.
   uint32 session_id = next_session_id_++;
   if (!media_keys_->CreateSession(
            session_id, type, init_data, init_data_length)) {
-    media_keys_.reset();
     return false;

[ddorwin, 2014/01/07 19:28:48]

Was the removed line just left over from before we had InitializeCDM?

   }
 
   return true;
 }
 
 void ProxyDecryptor::AddKey(const uint8* key,
                             int key_length,
                             const uint8* init_data,
                             int init_data_length,
                             const std::string& web_session_id) {
@@ skipping 127 matching lines @@
 
 const std::string& ProxyDecryptor::LookupWebSessionId(uint32 session_id) {
   DCHECK_NE(session_id, kInvalidSessionId);
 
   // Session may not exist if error happens during GenerateKeyRequest().
   SessionIdMap::iterator it = sessions_.find(session_id);
   return (it != sessions_.end()) ? it->second : base::EmptyString();
 }
 
 }  // namespace content