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

webkit/media/crypto/ppapi_decryptor.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/crypto/ppapi_decryptor.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 14 matching lines @@
       cdm_plugin_(plugin_instance),
       render_loop_proxy_(base::MessageLoopProxy::current()) {
   DCHECK(client_);
   DCHECK(cdm_plugin_);
   cdm_plugin_->set_decrypt_client(client);
 }
 
 PpapiDecryptor::~PpapiDecryptor() {
 }
 
-void PpapiDecryptor::GenerateKeyRequest(const std::string& key_system,
+bool PpapiDecryptor::GenerateKeyRequest(const std::string& key_system,
                                         const uint8* init_data,
                                         int init_data_length) {
   DVLOG(1) << "GenerateKeyRequest()";
   DCHECK(render_loop_proxy_->BelongsToCurrentThread());
   DCHECK(cdm_plugin_);
 
   // TODO(xhwang): Finalize the data type for |init_data| to avoid unnecessary
   // data type conversions.
   if (!cdm_plugin_->GenerateKeyRequest(
       key_system,
       std::string(reinterpret_cast<const char*>(init_data),
                   init_data_length))) {
     ReportFailureToCallPlugin(key_system, "");
+    return false;
   }
+
+  return true;
 }
 
 void PpapiDecryptor::AddKey(const std::string& key_system,
                             const uint8* key,
                             int key_length,
                             const uint8* init_data,
                             int init_data_length,
                             const std::string& session_id) {
   DVLOG(1) << "AddKey()";
   DCHECK(render_loop_proxy_->BelongsToCurrentThread());
@@ skipping 37 matching lines @@
 void PpapiDecryptor::Stop() {
 }
 
 void PpapiDecryptor::ReportFailureToCallPlugin(const std::string& key_system,
                                                const std::string& session_id) {
   DVLOG(1) << "Failed to call plugin.";
   client_->KeyError(key_system, session_id, kUnknownError, 0);
 }
 
 }  // namespace webkit_media