[Presentation API] Added the DefaultPresentationStart event and parsing of the default presentation…

Source/modules/modules.gypi

Index: Source/modules/modules.gypi
diff --git a/Source/modules/modules.gypi b/Source/modules/modules.gypi
index 1c6fa79dee0132a42a796f13b7463a9fd414e480..bfa7af5e605a9e19ac2305206c85ddd9a991fe9b 100644
--- a/Source/modules/modules.gypi
+++ b/Source/modules/modules.gypi
@@ -128,6 +128,7 @@
       'permissions/Permissions.idl',
       'permissions/PermissionStatus.idl',
       'presentation/AvailableChangeEvent.idl',
+      'presentation/DefaultSessionStartEvent.idl',
       'presentation/Presentation.idl',
       'presentation/PresentationSession.idl',
       'push_messaging/PushEvent.idl',
@@ -294,6 +295,7 @@
       'navigatorconnect/CrossOriginConnectEvent.idl',
       'notifications/NotificationEvent.idl',
       'presentation/AvailableChangeEvent.idl',
+      'presentation/DefaultSessionStartEvent.idl',
       'push_messaging/PushEvent.idl',
       'serviceworkers/ExtendableEvent.idl',
       'serviceworkers/FetchEvent.idl',
@@ -330,6 +332,7 @@
       'notifications/NotificationEventInit.idl',
       'notifications/NotificationOptions.idl',
       'presentation/AvailableChangeEventInit.idl',
+      'presentation/DefaultSessionStartEventInit.idl',
       'push_messaging/PushEventInit.idl',
       'serviceworkers/CacheQueryOptions.idl',
       'serviceworkers/ClientQueryOptions.idl',
@@ -399,6 +402,8 @@
       '<(blink_modules_output_dir)/notifications/NotificationOptions.h',
       '<(blink_modules_output_dir)/presentation/AvailableChangeEventInit.cpp',
       '<(blink_modules_output_dir)/presentation/AvailableChangeEventInit.h',
+      '<(blink_modules_output_dir)/presentation/DefaultSessionStartEventInit.cpp',
+      '<(blink_modules_output_dir)/presentation/DefaultSessionStartEventInit.h',
       '<(blink_modules_output_dir)/push_messaging/PushEventInit.cpp',
       '<(blink_modules_output_dir)/push_messaging/PushEventInit.h',
       '<(blink_modules_output_dir)/serviceworkers/CacheQueryOptions.cpp',
@@ -884,8 +889,10 @@
       'permissions/Permissions.h',
       'permissions/PermissionStatus.cpp',
       'permissions/PermissionStatus.h',
-      'presentation/AvailableChangeEvent.h',
       'presentation/AvailableChangeEvent.cpp',
+      'presentation/AvailableChangeEvent.h',
+      'presentation/DefaultSessionStartEvent.cpp',
+      'presentation/DefaultSessionStartEvent.h',
       'presentation/NavigatorPresentation.cpp',
       'presentation/NavigatorPresentation.h',
       'presentation/Presentation.cpp',