Implement audio proxy for Pepper.

In addition to the basic proxying, this required some changes to the dispatcher
and process infrastructure to get the handles of the processes available when
I need them so I can duplicate the shared memory handles properly into the
different processes.

TEST=none
BUG=none
Review URL: http://codereview.chromium.org/4985001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@68026 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 14 insertions, 7 deletions

diff --git a/chrome/ppapi_plugin/ppapi_thread.cc b/chrome/ppapi_plugin/ppapi_thread.cc
index 36ea9f6..8c4da88 100644
--- a/chrome/ppapi_plugin/ppapi_thread.cc
+++ b/chrome/ppapi_plugin/ppapi_thread.cc
@@ -47,9 +47,11 @@ void PpapiThread::OnMessageReceived(const IPC::Message& msg) {
   IPC_END_MESSAGE_MAP()
 }
 
-void PpapiThread::OnLoadPlugin(const FilePath& path, int renderer_id) {
+void PpapiThread::OnLoadPlugin(base::ProcessHandle host_process_handle,
+                               const FilePath& path,
+                               int renderer_id) {
   IPC::ChannelHandle channel_handle;
-  if (!LoadPluginLib(path) ||
+  if (!LoadPluginLib(host_process_handle, path) ||
       !SetupRendererChannel(renderer_id, &channel_handle)) {
     // An empty channel handle indicates error.
     Send(new PpapiHostMsg_PluginLoaded(IPC::ChannelHandle()));
@@ -59,7 +61,8 @@ void PpapiThread::OnLoadPlugin(const FilePath& path, int renderer_id) {
   Send(new PpapiHostMsg_PluginLoaded(channel_handle));
 }
 
-bool PpapiThread::LoadPluginLib(const FilePath& path) {
+bool PpapiThread::LoadPluginLib(base::ProcessHandle host_process_handle,
+                                const FilePath& path) {
   base::ScopedNativeLibrary library(base::LoadNativeLibrary(path));
   if (!library.is_valid())
     return false;
@@ -88,8 +91,8 @@ bool PpapiThread::LoadPluginLib(const FilePath& path) {
           library.GetFunctionPointer("PPP_ShutdownModule"));
 
   library_.Reset(library.Release());
-  dispatcher_.reset(new pp::proxy::PluginDispatcher(get_interface, init_module,
-                                                    shutdown_module));
+  dispatcher_.reset(new pp::proxy::PluginDispatcher(
+      host_process_handle, get_interface, init_module, shutdown_module));
   pp::proxy::PluginDispatcher::SetGlobal(dispatcher_.get());
   return true;
 }
diff --git a/chrome/ppapi_plugin/ppapi_thread.h b/chrome/ppapi_plugin/ppapi_thread.h
index ed7b024..cf49c8b 100644
--- a/chrome/ppapi_plugin/ppapi_thread.h
+++ b/chrome/ppapi_plugin/ppapi_thread.h
@@ -7,6 +7,7 @@
 #pragma once
 
 #include "base/basictypes.h"
+#include "base/process.h"
 #include "base/scoped_native_library.h"
 #include "base/scoped_ptr.h"
 #include "build/build_config.h"
@@ -34,9 +35,12 @@ class PpapiThread : public ChildThread {
   virtual void OnMessageReceived(const IPC::Message& msg);
 
   // Message handlers.
-  void OnLoadPlugin(const FilePath& path, int renderer_id);
+  void OnLoadPlugin(base::ProcessHandle renderer_handle,
+                    const FilePath& path,
+                    int renderer_id);
 
-  bool LoadPluginLib(const FilePath& path);
+  bool LoadPluginLib(base::ProcessHandle host_process_handle,
+                     const FilePath& path);
 
   // Sets up the channel to the given renderer. On success, returns true and
   // fills the given ChannelHandle with the information from the new channel.