[content shell] add support for invoking testRunner.notifyDone in a different process

content/shell/shell_messages.h

Index: content/shell/shell_messages.h
diff --git a/content/shell/shell_messages.h b/content/shell/shell_messages.h
index 5389d968583a96826930ca9aa2beda0eb60c4b6b..da5b96c6d447a2953e664a161774afd6b9e85536 100644
--- a/content/shell/shell_messages.h
+++ b/content/shell/shell_messages.h
@@ -39,6 +39,10 @@ IPC_MESSAGE_CONTROL1(ShellViewMsg_LoadHyphenDictionary,
 IPC_MESSAGE_ROUTED1(ShellViewMsg_SetTestConfiguration,
                     content::ShellTestConfiguration)
 
+// Tells the main window that a secondary window in a different process invoked
+// notifyDone().
+IPC_MESSAGE_ROUTED0(ShellViewMsg_NotifyDone)
+
 // Pushes a snapshot of the current session history from the browser process.
 // This includes only information about those RenderViews that are in the
 // same process as the main window of the layout test and that are the current
@@ -67,6 +71,8 @@ IPC_MESSAGE_ROUTED1(ShellViewHostMsg_TestFinished,
 
 IPC_MESSAGE_ROUTED0(ShellViewHostMsg_ResetDone)
 
+IPC_MESSAGE_ROUTED0(ShellViewHostMsg_TestFinishedInSecondaryWindow)
+
 // WebTestDelegate related.
 IPC_MESSAGE_ROUTED1(ShellViewHostMsg_OverridePreferences,
                     webkit_glue::WebPreferences /* preferences */)