Refactor PPAPI proxy resource handling to maintain which host they came from,...

ppapi/proxy/plugin_resource.cc

Index: ppapi/proxy/plugin_resource.cc
===================================================================
--- ppapi/proxy/plugin_resource.cc	(revision 72517)
+++ ppapi/proxy/plugin_resource.cc	(working copy)
@@ -7,7 +7,10 @@
 namespace pp {
 namespace proxy {
 
-PluginResource::PluginResource(PP_Instance instance) : instance_(instance) {
+PluginResource::PluginResource(PP_Instance instance,
+                               SerializedResource resource)
+    : instance_(instance),
+      host_resource_(resource) {
 }
 
 PluginResource::~PluginResource() {