3 files changed, 13 insertions, 11 deletions
diff --git a/chrome/plugin/plugin_channel.cc b/chrome/plugin/plugin_channel.cc
index 04d9afc..c813e4c 100644
--- a/chrome/plugin/plugin_channel.cc
+++ b/chrome/plugin/plugin_channel.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -27,11 +27,11 @@ class PluginReleaseTask : public Task {
 // How long we wait before releasing the plugin process.
 static const int kPluginReleaseTimeMS = 10000;
 
-PluginChannel* PluginChannel::GetPluginChannel(
-    int process_id, MessageLoop* ipc_message_loop) {
-  // map renderer's process id to a (single) channel to that process
+PluginChannel* PluginChannel::GetPluginChannel(int renderer_id,
+                                               MessageLoop* ipc_message_loop) {
+  // Map renderer ID to a (single) channel to that process.
   std::string channel_name = StringPrintf(
-      "%d.r%d", base::GetCurrentProcId(), process_id);
+      "%d.r%d", base::GetCurrentProcId(), renderer_id);
 
   return static_cast<PluginChannel*>(PluginChannelBase::GetChannel(
       channel_name,
diff --git a/chrome/plugin/plugin_channel.h b/chrome/plugin/plugin_channel.h
index 02b619e..58e711f 100644
--- a/chrome/plugin/plugin_channel.h
+++ b/chrome/plugin/plugin_channel.h
@@ -15,10 +15,13 @@
 // process.  On the renderer side there's a corresponding PluginChannelHost.
 class PluginChannel : public PluginChannelBase {
  public:
-  // Get a new PluginChannel object for the current process.
+  // Get a new PluginChannel object for the current process to talk to the
+  // given rendeer process. The renderer ID is an opaque unique ID generated by
+  // the browser.
+  //
   // POSIX only: If |channel_fd| > 0, use that file descriptor for the
   // channel socket.
-  static PluginChannel* GetPluginChannel(int process_id,
+  static PluginChannel* GetPluginChannel(int renderer_id,
                                          MessageLoop* ipc_message_loop);
 
   ~PluginChannel();
diff --git a/chrome/plugin/plugin_thread.cc b/chrome/plugin/plugin_thread.cc
index 307cbaa..c2a21bd 100644
--- a/chrome/plugin/plugin_thread.cc
+++ b/chrome/plugin/plugin_thread.cc
@@ -98,11 +98,10 @@ void PluginThread::OnControlMessageReceived(const IPC::Message& msg) {
   IPC_END_MESSAGE_MAP()
 }
 
-void PluginThread::OnCreateChannel(
-    int process_id,
-    bool off_the_record) {
+void PluginThread::OnCreateChannel(int renderer_id,
+                                   bool off_the_record) {
   scoped_refptr<PluginChannel> channel = PluginChannel::GetPluginChannel(
-      process_id, ChildProcess::current()->io_message_loop());
+      renderer_id, ChildProcess::current()->io_message_loop());
   IPC::ChannelHandle channel_handle;
   if (channel.get()) {
     channel_handle.name = channel->channel_name();