Return void from all PPP CDM API interface methods

webkit/plugins/ppapi/ppapi_plugin_instance.h

Index: webkit/plugins/ppapi/ppapi_plugin_instance.h
diff --git a/webkit/plugins/ppapi/ppapi_plugin_instance.h b/webkit/plugins/ppapi/ppapi_plugin_instance.h
index 29b9129e3091e290ada3be2abc6f581d8abfe546..45be1cae99fbac03f3bd607dd27838e58a373054 100644
--- a/webkit/plugins/ppapi/ppapi_plugin_instance.h
+++ b/webkit/plugins/ppapi/ppapi_plugin_instance.h
@@ -253,16 +253,16 @@ class WEBKIT_PLUGINS_EXPORT PluginInstance :
   // Provides access to PPP_ContentDecryptor_Private.
   // TODO(tomfinegan): Move decryptor methods to delegate class.
   void set_decrypt_client(media::DecryptorClient* client);
-  bool GenerateKeyRequest(const std::string& key_system,
+  void GenerateKeyRequest(const std::string& key_system,
                           const std::string& init_data);
-  bool AddKey(const std::string& session_id,
+  void AddKey(const std::string& session_id,
               const std::string& key,
               const std::string& init_data);
-  bool CancelKeyRequest(const std::string& session_id);
-  bool Decrypt(const scoped_refptr<media::DecoderBuffer>& encrypted_buffer,
+  void CancelKeyRequest(const std::string& session_id);
+  void Decrypt(const scoped_refptr<media::DecoderBuffer>& encrypted_buffer,
                const media::Decryptor::DecryptCB& decrypt_cb);
   // TODO(xhwang): Update this when we need to support decrypt and decode.
-  bool DecryptAndDecode(
+  void DecryptAndDecode(
       const scoped_refptr<media::DecoderBuffer>& encrypted_buffer,
       const media::Decryptor::DecryptCB& decrypt_cb);