Change how PepperMessageFilter is constructed, to simplify its use.

content/browser/plugin_service_impl.cc

Index: content/browser/plugin_service_impl.cc
===================================================================
--- content/browser/plugin_service_impl.cc	(revision 155271)
+++ content/browser/plugin_service_impl.cc	(working copy)
@@ -288,6 +288,7 @@
 PpapiPluginProcessHost* PluginServiceImpl::FindOrStartPpapiPluginProcess(
     const FilePath& plugin_path,
     const FilePath& profile_data_directory,
+    int render_process_id,
     PpapiPluginProcessHost::PluginClient* client) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
@@ -303,8 +304,7 @@
 
   // This plugin isn't loaded by any plugin process, so create a new process.
   return PpapiPluginProcessHost::CreatePluginHost(
-      *info, profile_data_directory,
-      client->GetResourceContext()->GetHostResolver());
+      *info, profile_data_directory, render_process_id);
 }
 
 PpapiPluginProcessHost* PluginServiceImpl::FindOrStartPpapiBrokerProcess(
@@ -353,9 +353,10 @@
 void PluginServiceImpl::OpenChannelToPpapiPlugin(
     const FilePath& plugin_path,
     const FilePath& profile_data_directory,
+    int render_process_id,
     PpapiPluginProcessHost::PluginClient* client) {
   PpapiPluginProcessHost* plugin_host = FindOrStartPpapiPluginProcess(
-      plugin_path, profile_data_directory, client);
+      plugin_path, profile_data_directory, render_process_id, client);
   if (plugin_host) {
     plugin_host->OpenChannelToPlugin(client);
   } else {