Asynchronously create the ppapi broker.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6822012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81525 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/ppapi/proxy/ppapi_messages.h b/ppapi/proxy/ppapi_messages.h
index 057874e..270af84 100644
--- a/ppapi/proxy/ppapi_messages.h
+++ b/ppapi/proxy/ppapi_messages.h
@@ -29,7 +29,7 @@
 
 #define IPC_MESSAGE_START PpapiMsgStart
 
-// These are from the plugin to the renderer
+// These are from the browser to the plugin.
 // Loads the given plugin.
 IPC_MESSAGE_CONTROL1(PpapiMsg_LoadPlugin, FilePath /* path */)