Add PPAPI decryptor interfaces.

webkit/plugins/ppapi/ppapi_plugin_instance.cc

Index: webkit/plugins/ppapi/ppapi_plugin_instance.cc
diff --git a/webkit/plugins/ppapi/ppapi_plugin_instance.cc b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
index 429dd03d4c65297cf1180a606232516017f62711..8e80568437fba7cbe3209fbceacae646d4e24d96 100644
--- a/webkit/plugins/ppapi/ppapi_plugin_instance.cc
+++ b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
@@ -323,6 +323,7 @@ PluginInstance::PluginInstance(
       has_content_area_focus_(false),
       find_identifier_(-1),
       resource_creation_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
+      plugin_decryption_interface_(NULL),
       plugin_find_interface_(NULL),
       plugin_messaging_interface_(NULL),
       plugin_mouse_lock_interface_(NULL),
@@ -954,6 +955,16 @@ void PluginInstance::StopFind() {
   plugin_find_interface_->StopFind(pp_instance());
 }
 
+bool PluginInstance::LoadContentDecryptionModuleInterface() {
+  if (!plugin_decryption_interface_) {
+    plugin_decryption_interface_ =
+        static_cast<const PPP_ContentDecryptionModule_Dev*>(
+          module_->GetPluginInterface(
+              PPP_CONTENTDECRYPTIONMODULE_DEV_INTERFACE));
+  }
+  return !!plugin_decryption_interface_;
+}
+
 bool PluginInstance::LoadFindInterface() {
   if (!plugin_find_interface_) {
     plugin_find_interface_ =
@@ -1252,6 +1263,34 @@ void PluginInstance::RotateView(WebPlugin::RotationType type) {
   // NOTE: plugin instance may have been deleted.
 }
 
+bool PluginInstance::AddKey(PP_Resource key) {
+  if (!LoadContentDecryptionModuleInterface())
+    return false;
+  return (plugin_decryption_interface_->AddKey(pp_instance(), key) == PP_TRUE);
+}
+
+bool PluginInstance::Decrypt(PP_Resource encrypted_block,
+                             PP_Resource decrypted_block,
+                             PP_CompletionCallback callback) {
+  if (!LoadContentDecryptionModuleInterface())
+    return false;
+  return (plugin_decryption_interface_->Decrypt(pp_instance(),
+                                                encrypted_block,
+                                                decrypted_block,
+                                                callback) == PP_TRUE);
+}
+
+bool PluginInstance::DecryptAndDecode(PP_Resource encrypted_block,
+                                      PP_Resource decoded_frame,
+                                      PP_CompletionCallback callback) {
+  if (!LoadContentDecryptionModuleInterface())
+    return false;
+  return (plugin_decryption_interface_->DecryptAndDecode(pp_instance(),
+                                                         encrypted_block,
+                                                         decoded_frame,
+                                                         callback) == PP_TRUE);
+}
+
 bool PluginInstance::FlashIsFullscreenOrPending() {
   return fullscreen_container_ != NULL;
 }