Add a bool return value to media::Decryptor::GenerateKeyRequest().

webkit/media/webmediaplayer_impl.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 "webkit/media/webmediaplayer_impl.h"
 
 #include <limits>
 #include <string>
 #include <vector>
 
@@ skipping 706 matching lines @@
   // We do not support run-time switching between key systems for now.
   if (current_key_system_.isEmpty())
     current_key_system_ = key_system;
   else if (key_system != current_key_system_)
     return WebKit::WebMediaPlayer::MediaKeyExceptionInvalidPlayerState;
 
   DVLOG(1) << "generateKeyRequest: " << key_system.utf8().data() << ": "
            << std::string(reinterpret_cast<const char*>(init_data),
                           static_cast<size_t>(init_data_length));
 
-  decryptor_.GenerateKeyRequest(key_system.utf8(),
-                                init_data, init_data_length);
+  if (!decryptor_.GenerateKeyRequest(key_system.utf8(),
+                                     init_data, init_data_length)) {
+    current_key_system_.reset();
+    return WebKit::WebMediaPlayer::MediaKeyExceptionKeySystemNotSupported;
+  }
+
   return WebKit::WebMediaPlayer::MediaKeyExceptionNoError;
 }
 
 WebKit::WebMediaPlayer::MediaKeyException WebMediaPlayerImpl::addKey(
     const WebString& key_system,
     const unsigned char* key,
     unsigned key_length,
     const unsigned char* init_data,
     unsigned init_data_length,
     const WebString& session_id) {
@@ skipping 321 matching lines @@
   return audio_source_provider_;
 }
 
 void WebMediaPlayerImpl::IncrementExternallyAllocatedMemory() {
   DCHECK_EQ(main_loop_, MessageLoop::current());
   incremented_externally_allocated_memory_ = true;
   v8::V8::AdjustAmountOfExternalAllocatedMemory(kPlayerExtraMemory);
 }
 
 }  // namespace webkit_media