Launches a privileged utility process.

content/common/utility_messages.h

Index: content/common/utility_messages.h
diff --git a/content/common/utility_messages.h b/content/common/utility_messages.h
index 1e5c68bfea3356eb466df21535a54ad8b287b655..fed69ddec40f871d6d27546c8ee7654f3047bb7b 100644
--- a/content/common/utility_messages.h
+++ b/content/common/utility_messages.h
@@ -27,6 +27,9 @@ IPC_MESSAGE_CONTROL0(UtilityMsg_BatchMode_Started)
 // Tells the utility process that it can shutdown.
 IPC_MESSAGE_CONTROL0(UtilityMsg_BatchMode_Finished)
 
+// Checks whether the utility process is running elevated.

[jam, 2014/01/30 21:41:03]

hmm, we shouldn't be putting testing IPCs here. especially since this test is
disabled and you can't run it on bots because it needs a UAC prompt

[Drew Haven, 2014/01/31 20:00:12]

Ah, in order to create the test I needed the utility process to respond to be
launched elevated and then confirm that that bi-directional communication was
working, so this is shared with the code that does the response and the test,
hence it's here and not in the test file.

I couldn't really think of an easier way to test it while developing.  In the
long run we can remove it.  I'd be more comfortable if there were a way to
automatically test it, but I can't see any.

+IPC_MESSAGE_CONTROL0(UtilityMsg_IsElevated)
+
 #if defined(OS_POSIX)
 // Tells the utility process to load each plugin in the order specified by the
 // vector. It will respond after each load with the WebPluginInfo.
@@ -50,3 +53,8 @@ IPC_SYNC_MESSAGE_CONTROL2_0(UtilityHostMsg_LoadedPlugin,
                             uint32_t /* index in the vector */,
                             content::WebPluginInfo /* plugin info */)
 #endif  // OS_POSIX
+
+// Response to tell the browser whether the Utility process is actually
+// elevated.
+IPC_MESSAGE_CONTROL1(UtilityHostMsg_IsElevated,
+                     bool /* true if elevated */)