First pass at making the proxy handle multiple renderers. This associates the...

ppapi/proxy/plugin_resource_tracker.cc

Index: ppapi/proxy/plugin_resource_tracker.cc
===================================================================
--- ppapi/proxy/plugin_resource_tracker.cc	(revision 71973)
+++ ppapi/proxy/plugin_resource_tracker.cc	(working copy)
@@ -5,6 +5,7 @@
 #include "ppapi/proxy/plugin_resource_tracker.h"
 
 #include "base/logging.h"
+#include "base/singleton.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/plugin_resource.h"
@@ -38,13 +39,17 @@
   return *this;
 }
 
-PluginResourceTracker::PluginResourceTracker(PluginDispatcher* dispatcher)
-    : dispatcher_(dispatcher) {
+PluginResourceTracker::PluginResourceTracker() {
 }
 
 PluginResourceTracker::~PluginResourceTracker() {
 }
 
+// static
+PluginResourceTracker* PluginResourceTracker::GetInstance() {
+  return Singleton<PluginResourceTracker>::get();
+}
+
 PluginResource* PluginResourceTracker::GetResourceObject(
     PP_Resource pp_resource) {
   ResourceMap::iterator found = resource_map_.find(pp_resource);
@@ -81,8 +86,8 @@
   // in the plugin for the additional ref, and then a Release in the renderer
   // because the code in the renderer addrefed on behalf of the caller.
   found->second.ref_count++;
-  dispatcher_->Send(new PpapiHostMsg_PPBCore_ReleaseResource(
-      INTERFACE_ID_PPB_CORE, resource));
+
+  SendReleaseResourceToHost(resource, found->second.resource.get());
   return true;
 }
 
@@ -94,13 +99,24 @@
     return;
   found->second.ref_count--;
   if (found->second.ref_count == 0) {
-    if (notify_browser_on_release) {
-      dispatcher_->Send(new PpapiHostMsg_PPBCore_ReleaseResource(
-          INTERFACE_ID_PPB_CORE, resource));
-    }
+    if (notify_browser_on_release)
+      SendReleaseResourceToHost(resource, found->second.resource.get());
     resource_map_.erase(found);
   }
 }
 
+void PluginResourceTracker::SendReleaseResourceToHost(
+    PP_Resource resource_id,
+    PluginResource* resource) {
+  PluginDispatcher* dispatcher =
+      PluginDispatcher::GetForInstance(resource->instance());
+  if (dispatcher) {
+    dispatcher->Send(new PpapiHostMsg_PPBCore_ReleaseResource(
+        INTERFACE_ID_PPB_CORE, resource_id));
+  } else {
+    NOTREACHED();
+  }
+}
+
 }  // namespace proxy
 }  // namespace pp