Conditionally build support for Pepper-based CDMs.

webkit/media/crypto/proxy_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/proxy_decryptor.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "media/crypto/aes_decryptor.h"
+#include "webkit/media/crypto/key_systems.h"
+
+#if defined(ENABLE_PEPPER_CDMS)
 #include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
-#include "webkit/media/crypto/key_systems.h"
 #include "webkit/media/crypto/ppapi_decryptor.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 #include "webkit/plugins/ppapi/ppapi_webplugin_impl.h"
 // TODO(xhwang): Put this include after "ppapi_plugin_instance.h" for definition
 // of "uint8_t", which WebMediaPlayer.h uses without including a header for it.
 // See: https://bugs.webkit.org/show_bug.cgi?id=92031
 // Fix include order here when the bug is fixed.
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaPlayerClient.h"
+#endif  // defined(ENABLE_PEPPER_CDMS)
 
 namespace webkit_media {
 
+#if defined(ENABLE_PEPPER_CDMS)
 // Returns the PluginInstance associated with the Helper Plugin.
 // If a non-NULL pointer is returned, the caller must call closeHelperPlugin()
 // when the Helper Plugin is no longer needed.
 static scoped_refptr<webkit::ppapi::PluginInstance> CreateHelperPlugin(
     const std::string& plugin_type,
     WebKit::WebMediaPlayerClient* web_media_player_client,
     WebKit::WebFrame* web_frame) {
   DCHECK(web_media_player_client);
   DCHECK(web_frame);
 
   WebKit::WebPlugin* web_plugin = web_media_player_client->createHelperPlugin(
       WebKit::WebString::fromUTF8(plugin_type), web_frame);
   if (!web_plugin)
     return NULL;
 
   DCHECK(!web_plugin->isPlaceholder());  // Prevented by WebKit.
   // Only Pepper plugins are supported, so it must be a ppapi object.
   webkit::ppapi::WebPluginImpl* ppapi_plugin =
       static_cast<webkit::ppapi::WebPluginImpl*>(web_plugin);
   return ppapi_plugin->instance();
 }
 
 static void DestroyHelperPlugin(
     WebKit::WebMediaPlayerClient* web_media_player_client) {
   web_media_player_client->closeHelperPlugin();
 }
+#endif  // defined(ENABLE_PEPPER_CDMS)
 
 ProxyDecryptor::ProxyDecryptor(
     WebKit::WebMediaPlayerClient* web_media_player_client,
     WebKit::WebFrame* web_frame,
     const media::KeyAddedCB& key_added_cb,
     const media::KeyErrorCB& key_error_cb,
     const media::KeyMessageCB& key_message_cb,
     const media::NeedKeyCB& need_key_cb)
     : web_media_player_client_(web_media_player_client),
       web_frame_(web_frame),
       did_create_helper_plugin_(false),
       key_added_cb_(key_added_cb),
       key_error_cb_(key_error_cb),
       key_message_cb_(key_message_cb),
       need_key_cb_(need_key_cb),
       weak_ptr_factory_(this) {
 }
 
 ProxyDecryptor::~ProxyDecryptor() {
   // Destroy the decryptor explicitly before destroying the plugin.
   {
     base::AutoLock auto_lock(lock_);
     decryptor_.reset();
   }
 
+#if defined(ENABLE_PEPPER_CDMS)
   if (did_create_helper_plugin_)
     DestroyHelperPlugin(web_media_player_client_);
+#endif
 
   web_media_player_client_ = NULL;  // We should be done using it now.
 }
 
 // TODO(xhwang): Support multiple decryptor notification request (e.g. from
 // video and audio decoders). The current implementation is okay for the current
 // media pipeline since we initialize audio and video decoders in sequence.
 // But ProxyDecryptor should not depend on media pipeline's implementation
 // detail.
 void ProxyDecryptor::SetDecryptorReadyCB(
@@ skipping 61 matching lines @@
 }
 
 void ProxyDecryptor::CancelKeyRequest(const std::string& key_system,
                                       const std::string& session_id) {
   DVLOG(1) << "CancelKeyRequest()";
 
   // WebMediaPlayerImpl ensures GenerateKeyRequest() has been called.
   decryptor_->CancelKeyRequest(key_system, session_id);
 }
 
+#if defined(ENABLE_PEPPER_CDMS)
 scoped_ptr<media::Decryptor> ProxyDecryptor::CreatePpapiDecryptor(
     const std::string& key_system) {
   DCHECK(web_media_player_client_);
   DCHECK(web_frame_);
 
-  std::string plugin_type = GetPluginType(key_system);
+  std::string plugin_type = GetPepperType(key_system);
   DCHECK(!plugin_type.empty());
   const scoped_refptr<webkit::ppapi::PluginInstance>& plugin_instance =
       CreateHelperPlugin(plugin_type, web_media_player_client_, web_frame_);
   did_create_helper_plugin_ = plugin_instance != NULL;
   if (!did_create_helper_plugin_) {
     DVLOG(1) << "ProxyDecryptor: plugin instance creation failed.";
     return scoped_ptr<media::Decryptor>();
   }
 
   return scoped_ptr<media::Decryptor>(new PpapiDecryptor(
       plugin_instance,
       base::Bind(&ProxyDecryptor::KeyAdded, weak_ptr_factory_.GetWeakPtr()),
       base::Bind(&ProxyDecryptor::KeyError, weak_ptr_factory_.GetWeakPtr()),
       base::Bind(&ProxyDecryptor::KeyMessage, weak_ptr_factory_.GetWeakPtr()),
       base::Bind(&ProxyDecryptor::NeedKey, weak_ptr_factory_.GetWeakPtr())));
 }
+#endif  // defined(ENABLE_PEPPER_CDMS)
 
 scoped_ptr<media::Decryptor> ProxyDecryptor::CreateDecryptor(
     const std::string& key_system) {
   if (CanUseAesDecryptor(key_system))
     return scoped_ptr<media::Decryptor>(new media::AesDecryptor(
         base::Bind(&ProxyDecryptor::KeyAdded, weak_ptr_factory_.GetWeakPtr()),
         base::Bind(&ProxyDecryptor::KeyError, weak_ptr_factory_.GetWeakPtr()),
         base::Bind(&ProxyDecryptor::KeyMessage, weak_ptr_factory_.GetWeakPtr()),
         base::Bind(&ProxyDecryptor::NeedKey, weak_ptr_factory_.GetWeakPtr())));
 
+#if defined(ENABLE_PEPPER_CDMS)
   // We only support AesDecryptor and PpapiDecryptor. So if we cannot
   // use the AesDecryptor, then we'll try to create a PpapiDecryptor for given
   // |key_system|.
   return CreatePpapiDecryptor(key_system);
+#else
+  return scoped_ptr<media::Decryptor>();
+#endif  // defined(ENABLE_PEPPER_CDMS)
 }
 
 void ProxyDecryptor::KeyAdded(const std::string& key_system,
                               const std::string& session_id) {
   key_added_cb_.Run(key_system, session_id);
 }
 
 void ProxyDecryptor::KeyError(const std::string& key_system,
                               const std::string& session_id,
                               media::Decryptor::KeyError error_code,
@@ skipping 11 matching lines @@
 void ProxyDecryptor::NeedKey(const std::string& key_system,
                              const std::string& session_id,
                              const std::string& type,
                              scoped_ptr<uint8[]> init_data,
                              int init_data_size) {
   need_key_cb_.Run(key_system, session_id, type,
                    init_data.Pass(), init_data_size);
 }
 
 }  // namespace webkit_media