Make o.o.p. proxy handle PPP_Instance versions 0.4 and 0.5.

ppapi/proxy/host_dispatcher.h

Index: ppapi/proxy/host_dispatcher.h
diff --git a/ppapi/proxy/host_dispatcher.h b/ppapi/proxy/host_dispatcher.h
index 55ba56bc76b6593acc3611a4ee94623dede5c0f1..3d3ff98245cb317183d4d276d4e9c9dfb987dd4c 100644
--- a/ppapi/proxy/host_dispatcher.h
+++ b/ppapi/proxy/host_dispatcher.h
@@ -110,12 +110,14 @@ class HostDispatcher : public Dispatcher {
 
   PP_Module pp_module_;
 
-  enum PluginInterfaceSupport {
-    INTERFACE_UNQUERIED = 0,  // Must be 0 so memset(0) will clear the list.
+  enum PluginIFSupport {
     INTERFACE_SUPPORTED,
     INTERFACE_UNSUPPORTED
   };
-  PluginInterfaceSupport plugin_interface_support_[INTERFACE_ID_COUNT];
+  typedef std::map<std::string, PluginIFSupport> PluginIFSupportMap;
+  // Maps interface name to whether that interface is supported. If an interface
+  // name is not in the map, that implies that we haven't queried for it yet.
+  std::map<std::string, PluginIFSupport> plugin_if_support_;

[brettw, 2011/06/24 00:35:24]

I guess I would have just done:
std::map<std::string, boo> plugin_if_supported_
and avoided the enum. It would also clean up the insert code. You can do it this
way if you think it's better, though.

[dmichael (off chromium), 2011/06/29 16:13:57]

Good suggestion.  Done.

 
   // All target proxies currently created. These are ones that receive
   // messages. They are created on demand when we receive messages.