Use macros to define pepper interfaces

ppapi/proxy/ppb_audio_proxy.cc

Index: ppapi/proxy/ppb_audio_proxy.cc
diff --git a/ppapi/proxy/ppb_audio_proxy.cc b/ppapi/proxy/ppb_audio_proxy.cc
index 139df10cc9eca8db21b13b80931f2434bca7a993..453d7b0a61fd344a0c3ad84dcc7fbe498260de12 100644
--- a/ppapi/proxy/ppb_audio_proxy.cc
+++ b/ppapi/proxy/ppb_audio_proxy.cc
@@ -116,11 +116,6 @@ int32_t Audio::GetSharedMemory(int* shm_handle, uint32_t* shm_size) {
 
 namespace {
 
-InterfaceProxy* CreateAudioProxy(Dispatcher* dispatcher,
-                                 const void* target_interface) {
-  return new PPB_Audio_Proxy(dispatcher, target_interface);
-}
-
 base::PlatformFile IntToPlatformFile(int32_t handle) {
   // TODO(piman/brettw): Change trusted interface to return a PP_FileHandle,
   // those casts are ugly.
@@ -135,9 +130,8 @@ base::PlatformFile IntToPlatformFile(int32_t handle) {
 
 }  // namespace
 
-PPB_Audio_Proxy::PPB_Audio_Proxy(Dispatcher* dispatcher,
-                                 const void* target_interface)
-    : InterfaceProxy(dispatcher, target_interface),
+PPB_Audio_Proxy::PPB_Audio_Proxy(Dispatcher* dispatcher)
+    : InterfaceProxy(dispatcher),
       callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
 }
 
@@ -145,18 +139,6 @@ PPB_Audio_Proxy::~PPB_Audio_Proxy() {
 }
 
 // static
-const InterfaceProxy::Info* PPB_Audio_Proxy::GetInfo() {
-  static const Info info = {
-    thunk::GetPPB_Audio_Thunk(),
-    PPB_AUDIO_INTERFACE,
-    INTERFACE_ID_PPB_AUDIO,
-    false,
-    &CreateAudioProxy,
-  };
-  return &info;
-}
-
-// static
 PP_Resource PPB_Audio_Proxy::CreateProxyResource(
     PP_Instance instance_id,
     PP_Resource config_id,
@@ -242,16 +224,19 @@ void PPB_Audio_Proxy::OnMsgCreate(PP_Instance instance_id,
 
   // Clean up the temporary audio config resource we made.
   const PPB_Core* core = static_cast<const PPB_Core*>(
-      dispatcher()->GetLocalInterface(PPB_CORE_INTERFACE));
+      dispatcher()->local_get_interface()(PPB_CORE_INTERFACE));
   core->ReleaseResource(audio_config_res);
 }
 
 void PPB_Audio_Proxy::OnMsgStartOrStop(const HostResource& audio_id,
                                        bool play) {
+  EnterHostFromHostResource<PPB_Audio_API> enter(audio_id);
+  if (enter.failed())
+    return;
   if (play)
-    ppb_audio_target()->StartPlayback(audio_id.host_resource());
+    enter.object()->StartPlayback();
   else
-    ppb_audio_target()->StopPlayback(audio_id.host_resource());
+    enter.object()->StopPlayback();
 }
 
 // Processed in the plugin (message from host).
@@ -307,7 +292,7 @@ int32_t PPB_Audio_Proxy::GetAudioConnectedHandles(
     base::SharedMemoryHandle* foreign_shared_memory_handle,
     uint32_t* shared_memory_length) {
   // Get the audio interface which will give us the handles.
-  EnterResourceNoLock<PPB_Audio_API> enter(resource.host_resource(), false);
+  EnterHostFromHostResource<PPB_Audio_API> enter(resource);
   if (enter.failed())
     return PP_ERROR_NOINTERFACE;